Finding the Fourth Proportional to 102,592.88, 141,580.56 and 64,354.04

Step by Step Solution

1. Step 1: Write the proportion equation
   102,592.88 : 141,580.56 = 64,354.04 : x
2. Step 2: Convert to fraction form
   102,592.88/141,580.56 = 64,354.04/x
3. Step 3: Cross multiply
   102,592.88x = 141,580.56 × 64,354.04
4. Step 4: Simplify right side
   102,592.88x = 9,111,281,021.46
5. Step 5: Solve for x
   x = 9,111,281,021.46/102,592.88
6. Step 6: Final answer
   x = 88,810.07