Finding the Fourth Proportional to 17,566.80, 24,227.64 and 12,786.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,566.80 : 24,227.64 = 12,786.72 : x
2. Step 2: Convert to fraction form
   17,566.80/24,227.64 = 12,786.72/x
3. Step 3: Cross multiply
   17,566.80x = 24,227.64 × 12,786.72
4. Step 4: Simplify right side
   17,566.80x = 309,792,048.94
5. Step 5: Solve for x
   x = 309,792,048.94/17,566.80
6. Step 6: Final answer
   x = 17,635.09