Finding the Fourth Proportional to 17,718.55, 24,451.76 and 9,760.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,718.55 : 24,451.76 = 9,760.80 : x
2. Step 2: Convert to fraction form
   17,718.55/24,451.76 = 9,760.80/x
3. Step 3: Cross multiply
   17,718.55x = 24,451.76 × 9,760.80
4. Step 4: Simplify right side
   17,718.55x = 238,668,739.01
5. Step 5: Solve for x
   x = 238,668,739.01/17,718.55
6. Step 6: Final answer
   x = 13,469.99