Finding the Fourth Proportional to 102,231, 141,057.54 and 59,781.32

Step by Step Solution

1. Step 1: Write the proportion equation
   102,231 : 141,057.54 = 59,781.32 : x
2. Step 2: Convert to fraction form
   102,231/141,057.54 = 59,781.32/x
3. Step 3: Cross multiply
   102,231x = 141,057.54 × 59,781.32
4. Step 4: Simplify right side
   102,231x = 8,432,605,937.15
5. Step 5: Solve for x
   x = 8,432,605,937.15/102,231
6. Step 6: Final answer
   x = 82,485.80