How many yards in 4x37'x37'?
Apart from the fact that there is no indication as to whether
the 4 refers to 4 inches, 4 feet , 4 yards, 4 miles or even 4 light
years, the question cannot be answered sensibly.
A yard is a measure of length whereas 4*37'*37' is either a
measure of area (if the 4 refers to 4 lots of) or to a measure of
volume (if there is some unknown units of length associated with
it). In either case, the two measure different things and,
according to the very basic principles of dimensional analysis,
conversion from one to the other is not valid.