Finding the Fourth Proportional to 82,710.78, 124,078.47 and 38,342.02

Step by Step Solution

1. Step 1: Write the proportion equation
   82,710.78 : 124,078.47 = 38,342.02 : x
2. Step 2: Convert to fraction form
   82,710.78/124,078.47 = 38,342.02/x
3. Step 3: Cross multiply
   82,710.78x = 124,078.47 × 38,342.02
4. Step 4: Simplify right side
   82,710.78x = 4,757,419,178.31
5. Step 5: Solve for x
   x = 4,757,419,178.31/82,710.78
6. Step 6: Final answer
   x = 57,518.73