Finding the Fourth Proportional to 102,839.82, 141,909.18 and 60,390.18

Step by Step Solution

1. Step 1: Write the proportion equation
   102,839.82 : 141,909.18 = 60,390.18 : x
2. Step 2: Convert to fraction form
   102,839.82/141,909.18 = 60,390.18/x
3. Step 3: Cross multiply
   102,839.82x = 141,909.18 × 60,390.18
4. Step 4: Simplify right side
   102,839.82x = 8,569,920,923.85
5. Step 5: Solve for x
   x = 8,569,920,923.85/102,839.82
6. Step 6: Final answer
   x = 83,332.71