Finding the Fourth Proportional to 102,287.48, 141,156.32 and 56,966.00

Step by Step Solution

1. Step 1: Write the proportion equation
   102,287.48 : 141,156.32 = 56,966.00 : x
2. Step 2: Convert to fraction form
   102,287.48/141,156.32 = 56,966.00/x
3. Step 3: Cross multiply
   102,287.48x = 141,156.32 × 56,966.00
4. Step 4: Simplify right side
   102,287.48x = 8,041,109,934.51
5. Step 5: Solve for x
   x = 8,041,109,934.51/102,287.48
6. Step 6: Final answer
   x = 78,612.85