If cutting on the length of grain -
I would cut eleven 3-3/4 inch strips = 41-1/4 inches
If one is comfortable cutting 3-7/8 wide strips = that would use up 42.58 inches of width.
Theoretically, one could get eleven 4-inch wide strips from a 45 inch width - but i would go for the slightly narrower width.
11 strips will give you 396 inches total of length - you might want to play with where you want to place the seams.
No matter which way you cut it, you will have to do some piecing to get the needed lengths.
P.S. Those are theoretical measurements - your piece of fabric may not be cut "exactly" straight