Finding the Fourth Proportional to 17,658.72, 24,368.72 and 9,700.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,658.72 : 24,368.72 = 9,700.80 : x
2. Step 2: Convert to fraction form
   17,658.72/24,368.72 = 9,700.80/x
3. Step 3: Cross multiply
   17,658.72x = 24,368.72 × 9,700.80
4. Step 4: Simplify right side
   17,658.72x = 236,396,078.98
5. Step 5: Solve for x
   x = 236,396,078.98/17,658.72
6. Step 6: Final answer
   x = 13,386.93