Finding the Fourth Proportional to 12,531.12, 17,292.60 and 7,499.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,531.12 : 17,292.60 = 7,499.04 : x
2. Step 2: Convert to fraction form
   12,531.12/17,292.60 = 7,499.04/x
3. Step 3: Cross multiply
   12,531.12x = 17,292.60 × 7,499.04
4. Step 4: Simplify right side
   12,531.12x = 129,677,899.10
5. Step 5: Solve for x
   x = 129,677,899.10/12,531.12
6. Step 6: Final answer
   x = 10,348.47