Finding the Fourth Proportional to 31,391.78, 47,082.50 and 10,332.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,391.78 : 47,082.50 = 10,332.10 : x
2. Step 2: Convert to fraction form
   31,391.78/47,082.50 = 10,332.10/x
3. Step 3: Cross multiply
   31,391.78x = 47,082.50 × 10,332.10
4. Step 4: Simplify right side
   31,391.78x = 486,460,811.18
5. Step 5: Solve for x
   x = 486,460,811.18/31,391.78
6. Step 6: Final answer
   x = 15,496.44