Finding the Fourth Proportional to 17,682.72, 24,401.88 and 9,724.68

Step by Step Solution

1. Step 1: Write the proportion equation
   17,682.72 : 24,401.88 = 9,724.68 : x
2. Step 2: Convert to fraction form
   17,682.72/24,401.88 = 9,724.68/x
3. Step 3: Cross multiply
   17,682.72x = 24,401.88 × 9,724.68
4. Step 4: Simplify right side
   17,682.72x = 237,300,474.40
5. Step 5: Solve for x
   x = 237,300,474.40/17,682.72
6. Step 6: Final answer
   x = 13,419.91