After Dagnall spurned his opportunity Everton seemed certain to go further ahead, with Fellaini firing over after a neat exchange of passes with Beckford.
Coleman was causing constant problems and his astute pass put Beckford through, but the former Leeds striker was denied by a good save from Murphy.
Baines then crossed for Leon Osman but his effort from 10 yards was deflected wide, while Eddie Nolan made a superb block to thwart Saha after Fellaini's backheel freed Baines to centre from the left.
But Fellaini again found England full-back Baines and another inviting cross was flicked in by Beckford.
The home side needed something special after the break and barely a minute into the half they hit back when Collins raced on to Josh Wright's ball over the top and lashed into the net from the edge of the area.
There was no fairytale finish, however, as Everton asserted their superiority and ensured their place in Sunday afternoon's draw.
Beckford crossed for Coleman to power in his fifth goal of the season, Fellaini drilled in left-footed from the edge of the area and Baines drifted past some tired defenders before a precise effort found the top corner.
75:33 Seamus Coleman challenges David Mirfin unfairly and gives away a free kick. Joe Murphy restarts play with the free kick.
74:19 Centre by Andrew Wright, save made by Tim Howard.
73:46 Substitution Jack Rodwell comes on in place of Marouane Fellaini.
72:20 Assist on the goal came from Jermaine Beckford.
72:20 GOAL - Marouane Fellaini:Scunthorpe 1 - 4 Everton Marouane Fellaini finds the back of the net with a goal from the edge of the penalty box to the bottom right corner of the
goal. Scunthorpe 1-4 Everton.
70:58 Michael O'Connor fouled by Johnny Heitinga, the ref awards a free kick. Free kick taken by Michael Collins. Eddie Nolan challenges
Leon Osman unfairly and gives away a free kick. Tim Howard takes the free kick.
68:58 Andrew Wright delivers the ball, Matt Godden takes a shot. Comfortable save by Tim Howard.
68:28 Victor Anichebe challenges Michael O'Connor unfairly and gives away a free kick. Free kick taken by David Mirfin.
66:51 Long range effort from Victor Anichebe misses to the left of the target.
65:54 Andrew Wright gives away a free kick for an unfair challenge on Diniyar Bilyaletdinov. Free kick taken by Leighton Baines.
65:54 Substitution Matt Godden comes on in place of Chris Dagnall.
63:00 Substitution Victor Anichebe joins the action as a substitute, replacing Louis Saha.
62:36 Seamus Coleman has an effort at goal from just inside the box that misses to the right of the goal.
62:00 The ball is delivered by Tony Hibbert, Michael Raynes manages to make a clearance. Corner taken by Leighton Baines from the
right by-line to the near post, Michael O'Connor makes a clearance.
60:01 Effort on goal by Leon Osman from 18 yards. David Mirfin gets a block in.
57:46 Booking Seamus Coleman receives a caution.
57:38 The assist for the goal came from Jermaine Beckford.
57:38 GOAL - Seamus Coleman:Scunthorpe 1 - 3 Everton Seamus Coleman finds the net with a headed goal from deep inside the penalty area. Scunthorpe 1-3 Everton.
56:50 Leighton Baines produces a cross, clearance made by Eddie Nolan.
55:47 The ball is sent over by Eddie Nolan, clearance by Sylvain Distin.
54:43 Inswinging corner taken by Leighton Baines.
52:49 Michael O'Connor produces a drilled left-footed shot from 25 yards. Sylvain Distin gets a block in.
51:35 Chris Dagnall has a shot on goal from outside the area which misses left.
51:14 Jermaine Beckford produces a cross, clearance made by Eddie Nolan.
49:38 Foul by Leon Osman on Martyn Woolford, free kick awarded. Free kick taken by Michael O'Connor.
48:45 Michael O'Connor gives away a free kick for an unfair challenge on Seamus Coleman. Tony Hibbert delivers the ball, Shot from
just outside the box by Diniyar Bilyaletdinov misses to the left of the goal.
46:16 Diniyar Bilyaletdinov produces a cross.
45:15 Josh Wright provided the assist for the goal.
45:15 GOAL - Michael Collins:Scunthorpe 1 - 2 Everton Goal scored by Michael Collins from the edge of the penalty area to the bottom left corner of the goal. Scunthorpe 1-2 Everton.
45:01 The second half has started.
45:01 Substitution Michael Raynes joins the action as a substitute, replacing Rob Jones.
45:00+1:02 The players leave the pitch at half time.
43:32 David Mirfin concedes a free kick for a foul on Louis Saha. The ball is crossed by Leighton Baines, Louis Saha takes a shot.
Save made by Joe Murphy.
39:09 Unfair challenge on David Mirfin by Jermaine Beckford results in a free kick. Free kick taken by Joe Murphy.
37:32 Marouane Fellaini takes the chance to get an effort at goal. Blocked by Rob Jones.
34:42 Martyn Woolford fouled by Tony Hibbert, the ref awards a free kick. Eddie Nolan crosses the ball, Michael O'Connor has an
effort at goal from outside the penalty area missing to the wide left of the goal.
32:47 Leon Osman provided the assist for the goal.
32:47 GOAL - Jermaine Beckford:Scunthorpe 0 - 2 Everton Jermaine Beckford finds the back of the net with a headed goal from inside the box. Scunthorpe 0-2 Everton.
29:50 Martyn Woolford fouled by Marouane Fellaini, the ref awards a free kick. David Mirfin delivers the ball from the free kick
right-footed from right channel, Leighton Baines manages to make a clearance.
28:48 The ball is delivered by Leighton Baines.
28:22 A cross is delivered by Leighton Baines, Joe Murphy manages to make a clearance.
27:47 Diniyar Bilyaletdinov delivers the ball, David Mirfin manages to make a clearance. Outswinging corner taken left-footed by
Leighton Baines from the left by-line, Rob Jones manages to make a clearance.
27:02 Unfair challenge on Tony Hibbert by Michael Collins results in a free kick. Tim Howard takes the direct free kick.
25:44 Foul by Rob Jones on Seamus Coleman, free kick awarded. Free kick taken by Tony Hibbert.
24:47 The ball is sent over by Leighton Baines, Leon Osman takes a shot. Rob Jones gets a block in. Outswinging corner taken left-footed
by Leighton Baines.
22:58 Leighton Baines crosses the ball.
22:17 Jermaine Beckford has an effort at goal. Save made by Joe Murphy. Outswinging corner taken by Leighton Baines, Rob Jones manages
to make a clearance.
21:02 Louis Saha fouled by David Mirfin, the ref awards a free kick. Leon Osman takes the free kick.
20:16 Effort on goal by Marouane Fellaini from just inside the penalty box goes harmlessly over the target.
19:13 Seamus Coleman delivers the ball, clearance by David Mirfin.
17:06 Corner taken by Josh Wright, Diniyar Bilyaletdinov makes a clearance. Michael O'Connor takes a shot from 30 yards. Save by
13:53 Free kick awarded for a foul by Jonathan Forte on Johnny Heitinga. Tim Howard restarts play with the free kick.
11:43 Jermaine Beckford is ruled offside. Free kick taken by David Mirfin.
11:23 A cross is delivered by Jonathan Forte, clearance by Johnny Heitinga.
9:16 Jermaine Beckford challenges Rob Jones unfairly and gives away a free kick. Eddie Nolan takes the free kick.
8:19 Shot by Jermaine Beckford. Johnny Heitinga gets a block in. Corner taken by Leon Osman from the left by-line, Eddie Nolan
makes a clearance. Free kick awarded for a foul by Johnny Heitinga on Chris Dagnall. Free kick taken by Joe Murphy.
8:19 Booking Johnny Heitinga receives a caution for unsporting behaviour.
6:03 The referee penalises Seamus Coleman for handball. Free kick crossed right-footed by Eddie Nolan from left wing.
5:15 Andrew Wright delivers the ball, Headed effort from inside the area by Chris Dagnall misses to the left of the target.
3:25 The assist for the goal came from Marouane Fellaini.
3:25 GOAL - Louis Saha:Scunthorpe 0 - 1 Everton Louis Saha finds the net with a goal from long range to the bottom right corner of the goal. Scunthorpe 0-1 Everton.
2:20 Eddie Nolan produces a cross, Marouane Fellaini makes a clearance.
0:42 Centre by Seamus Coleman, save by Joe Murphy. Outswinging corner taken left-footed by Leighton Baines from the left by-line,
clearance made by Rob Jones.
0:00 The ref blows the whistle to start the match.
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