Finding the Fourth Proportional to 73,087.50, 100,860.75 and 39,553.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,087.50 : 100,860.75 = 39,553.50 : x
2. Step 2: Convert to fraction form
   73,087.50/100,860.75 = 39,553.50/x
3. Step 3: Cross multiply
   73,087.50x = 100,860.75 × 39,553.50
4. Step 4: Simplify right side
   73,087.50x = 3,989,394,973.05
5. Step 5: Solve for x
   x = 3,989,394,973.05/73,087.50
6. Step 6: Final answer
   x = 54,583.82