Finding the Fourth Proportional to 17,682.75, 24,401.57 and 9,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,682.75 : 24,401.57 = 9,724.50 : x
2. Step 2: Convert to fraction form
   17,682.75/24,401.57 = 9,724.50/x
3. Step 3: Cross multiply
   17,682.75x = 24,401.57 × 9,724.50
4. Step 4: Simplify right side
   17,682.75x = 237,293,018.84
5. Step 5: Solve for x
   x = 237,293,018.84/17,682.75
6. Step 6: Final answer
   x = 13,419.46