Finding the Fourth Proportional to 83,890.98, 125,886.72 and 31,337.40

Step by Step Solution

1. Step 1: Write the proportion equation
   83,890.98 : 125,886.72 = 31,337.40 : x
2. Step 2: Convert to fraction form
   83,890.98/125,886.72 = 31,337.40/x
3. Step 3: Cross multiply
   83,890.98x = 125,886.72 × 31,337.40
4. Step 4: Simplify right side
   83,890.98x = 3,944,962,499.33
5. Step 5: Solve for x
   x = 3,944,962,499.33/83,890.98
6. Step 6: Final answer
   x = 47,024.87