Finding the Fourth Proportional to 17,615.94, 24,309.78 and 9,658.17

Step by Step Solution

1. Step 1: Write the proportion equation
   17,615.94 : 24,309.78 = 9,658.17 : x
2. Step 2: Convert to fraction form
   17,615.94/24,309.78 = 9,658.17/x
3. Step 3: Cross multiply
   17,615.94x = 24,309.78 × 9,658.17
4. Step 4: Simplify right side
   17,615.94x = 234,787,987.90
5. Step 5: Solve for x
   x = 234,787,987.90/17,615.94
6. Step 6: Final answer
   x = 13,328.16