Finding the Fourth Proportional to 17,686.49, 24,407.96 and 9,729.05

Step by Step Solution

1. Step 1: Write the proportion equation
   17,686.49 : 24,407.96 = 9,729.05 : x
2. Step 2: Convert to fraction form
   17,686.49/24,407.96 = 9,729.05/x
3. Step 3: Cross multiply
   17,686.49x = 24,407.96 × 9,729.05
4. Step 4: Simplify right side
   17,686.49x = 237,466,092.55
5. Step 5: Solve for x
   x = 237,466,092.55/17,686.49
6. Step 6: Final answer
   x = 13,426.42