Finding the Fourth Proportional to 102,384.38, 141,301.92 and 57,066.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,384.38 : 141,301.92 = 57,066.50 : x
2. Step 2: Convert to fraction form
   102,384.38/141,301.92 = 57,066.50/x
3. Step 3: Cross multiply
   102,384.38x = 141,301.92 × 57,066.50
4. Step 4: Simplify right side
   102,384.38x = 8,063,606,017.68
5. Step 5: Solve for x
   x = 8,063,606,017.68/102,384.38
6. Step 6: Final answer
   x = 78,758.17