Finding the Fourth Proportional to 17,649.15, 24,354.24 and 9,691.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,649.15 : 24,354.24 = 9,691.20 : x
2. Step 2: Convert to fraction form
   17,649.15/24,354.24 = 9,691.20/x
3. Step 3: Cross multiply
   17,649.15x = 24,354.24 × 9,691.20
4. Step 4: Simplify right side
   17,649.15x = 236,021,810.69
5. Step 5: Solve for x
   x = 236,021,810.69/17,649.15
6. Step 6: Final answer
   x = 13,372.98