Finding the Fourth Proportional to 82,709.31, 124,076.27 and 38,340.55

Step by Step Solution

1. Step 1: Write the proportion equation
   82,709.31 : 124,076.27 = 38,340.55 : x
2. Step 2: Convert to fraction form
   82,709.31/124,076.27 = 38,340.55/x
3. Step 3: Cross multiply
   82,709.31x = 124,076.27 × 38,340.55
4. Step 4: Simplify right side
   82,709.31x = 4,757,151,931.86
5. Step 5: Solve for x
   x = 4,757,151,931.86/82,709.31
6. Step 6: Final answer
   x = 57,516.52