Finding the Fourth Proportional to 103,200.30, 142,403.72 and 60,750.62

Step by Step Solution

1. Step 1: Write the proportion equation
   103,200.30 : 142,403.72 = 60,750.62 : x
2. Step 2: Convert to fraction form
   103,200.30/142,403.72 = 60,750.62/x
3. Step 3: Cross multiply
   103,200.30x = 142,403.72 × 60,750.62
4. Step 4: Simplify right side
   103,200.30x = 8,651,114,280.31
5. Step 5: Solve for x
   x = 8,651,114,280.31/103,200.30
6. Step 6: Final answer
   x = 83,828.38