Finding the Fourth Proportional to 17,600.73, 24,288.30 and 9,642.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,600.73 : 24,288.30 = 9,642.78 : x
2. Step 2: Convert to fraction form
   17,600.73/24,288.30 = 9,642.78/x
3. Step 3: Cross multiply
   17,600.73x = 24,288.30 × 9,642.78
4. Step 4: Simplify right side
   17,600.73x = 234,206,733.47
5. Step 5: Solve for x
   x = 234,206,733.47/17,600.73
6. Step 6: Final answer
   x = 13,306.65