Finding the Fourth Proportional to 83,885.37, 125,789.17 and 31,280.73

Step by Step Solution

1. Step 1: Write the proportion equation
   83,885.37 : 125,789.17 = 31,280.73 : x
2. Step 2: Convert to fraction form
   83,885.37/125,789.17 = 31,280.73/x
3. Step 3: Cross multiply
   83,885.37x = 125,789.17 × 31,280.73
4. Step 4: Simplify right side
   83,885.37x = 3,934,777,063.69
5. Step 5: Solve for x
   x = 3,934,777,063.69/83,885.37
6. Step 6: Final answer
   x = 46,906.59