Finding the Fourth Proportional to 17,649.72, 24,356.82 and 9,691.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,649.72 : 24,356.82 = 9,691.80 : x
2. Step 2: Convert to fraction form
   17,649.72/24,356.82 = 9,691.80/x
3. Step 3: Cross multiply
   17,649.72x = 24,356.82 × 9,691.80
4. Step 4: Simplify right side
   17,649.72x = 236,061,428.08
5. Step 5: Solve for x
   x = 236,061,428.08/17,649.72
6. Step 6: Final answer
   x = 13,374.80