Finding the Fourth Proportional to 17,636.90, 24,339.50 and 9,679.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,636.90 : 24,339.50 = 9,679.55 : x
2. Step 2: Convert to fraction form
   17,636.90/24,339.50 = 9,679.55/x
3. Step 3: Cross multiply
   17,636.90x = 24,339.50 × 9,679.55
4. Step 4: Simplify right side
   17,636.90x = 235,595,492.27
5. Step 5: Solve for x
   x = 235,595,492.27/17,636.90
6. Step 6: Final answer
   x = 13,358.10