Finding the Fourth Proportional to 83,982.38, 125,986.52 and 31,399.34

Step by Step Solution

1. Step 1: Write the proportion equation
   83,982.38 : 125,986.52 = 31,399.34 : x
2. Step 2: Convert to fraction form
   83,982.38/125,986.52 = 31,399.34/x
3. Step 3: Cross multiply
   83,982.38x = 125,986.52 × 31,399.34
4. Step 4: Simplify right side
   83,982.38x = 3,955,893,025.46
5. Step 5: Solve for x
   x = 3,955,893,025.46/83,982.38
6. Step 6: Final answer
   x = 47,103.85