Solution:
Consider the following diagram of the rectangular park given in the problem:
now, the perimeter P of this figure is the sum of all its sides, that is:

But, the length of the park is 10,729.1 inches longer than the width, that is:
EQUATION 1:

Substituting the above expression into the perimeter equation, we get:

this is equivalent to:

this is equivalent to:

But P = 23083.1 inches, then replacing this data into the previous equation, e get:

solving for 4W, we get:

solving for W, we get:

now, replacing the above result into equation 1, we get:

so that, we can conclude that the correct answer is:
