The dimensions are in feet. If you’re not in that biz, you probably dont have a tape that measures in tenths of a foot. Convert the right of the decimal point to inches by multiplying by 12.
54.98′ : .98′ times 12 = 11.75,
so its 54 feet 11.75 inches.
212.84′ : 212 feet 10.08 inches.
If you want to convert the 10.08 inches further, multiply the .08 inches by 16 to get sixteenths of an inch:
.08 times 16 = 1.28, so its a little over 1/16″
212.84′ = 212′ 10-1/16″