Finding the Fourth Proportional to 31,139.12, 46,716.47 and 8,952.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,139.12 : 46,716.47 = 8,952.50 : x
2. Step 2: Convert to fraction form
   31,139.12/46,716.47 = 8,952.50/x
3. Step 3: Cross multiply
   31,139.12x = 46,716.47 × 8,952.50
4. Step 4: Simplify right side
   31,139.12x = 418,229,040.17
5. Step 5: Solve for x
   x = 418,229,040.17/31,139.12
6. Step 6: Final answer
   x = 13,430.98