Finding the Fourth Proportional to 12,534.88, 17,298.13 and 7,499.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,534.88 : 17,298.13 = 7,499.31 : x
2. Step 2: Convert to fraction form
   12,534.88/17,298.13 = 7,499.31/x
3. Step 3: Cross multiply
   12,534.88x = 17,298.13 × 7,499.31
4. Step 4: Simplify right side
   12,534.88x = 129,723,996.04
5. Step 5: Solve for x
   x = 129,723,996.04/12,534.88
6. Step 6: Final answer
   x = 10,349.04