Finding the Fourth Proportional to 17,688.57, 24,410.28 and 9,731.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,688.57 : 24,410.28 = 9,731.30 : x
2. Step 2: Convert to fraction form
   17,688.57/24,410.28 = 9,731.30/x
3. Step 3: Cross multiply
   17,688.57x = 24,410.28 × 9,731.30
4. Step 4: Simplify right side
   17,688.57x = 237,543,635.71
5. Step 5: Solve for x
   x = 237,543,635.71/17,688.57
6. Step 6: Final answer
   x = 13,429.22