Finding the Fourth Proportional to 88,593.88, 132,907.94 and 28,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,593.88 : 132,907.94 = 28,638.50 : x
2. Step 2: Convert to fraction form
   88,593.88/132,907.94 = 28,638.50/x
3. Step 3: Cross multiply
   88,593.88x = 132,907.94 × 28,638.50
4. Step 4: Simplify right side
   88,593.88x = 3,806,284,039.69
5. Step 5: Solve for x
   x = 3,806,284,039.69/88,593.88
6. Step 6: Final answer
   x = 42,963.28