Finding the Fourth Proportional to 31,310.96, 46,974.58 and 9,123.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,310.96 : 46,974.58 = 9,123.82 : x
2. Step 2: Convert to fraction form
   31,310.96/46,974.58 = 9,123.82/x
3. Step 3: Cross multiply
   31,310.96x = 46,974.58 × 9,123.82
4. Step 4: Simplify right side
   31,310.96x = 428,587,612.50
5. Step 5: Solve for x
   x = 428,587,612.50/31,310.96
6. Step 6: Final answer
   x = 13,688.10