Finding the Fourth Proportional to 86,404.38, 129,504.73 and 38,963.92

Step by Step Solution

1. Step 1: Write the proportion equation
   86,404.38 : 129,504.73 = 38,963.92 : x
2. Step 2: Convert to fraction form
   86,404.38/129,504.73 = 38,963.92/x
3. Step 3: Cross multiply
   86,404.38x = 129,504.73 × 38,963.92
4. Step 4: Simplify right side
   86,404.38x = 5,046,011,939.34
5. Step 5: Solve for x
   x = 5,046,011,939.34/86,404.38
6. Step 6: Final answer
   x = 58,399.96