Finding the Fourth Proportional to 88,127.31, 121,612.17 and 47,839.71

Step by Step Solution

1. Step 1: Write the proportion equation
   88,127.31 : 121,612.17 = 47,839.71 : x
2. Step 2: Convert to fraction form
   88,127.31/121,612.17 = 47,839.71/x
3. Step 3: Cross multiply
   88,127.31x = 121,612.17 × 47,839.71
4. Step 4: Simplify right side
   88,127.31x = 5,817,890,945.27
5. Step 5: Solve for x
   x = 5,817,890,945.27/88,127.31
6. Step 6: Final answer
   x = 66,016.89