Finding the Fourth Proportional to 17,719.55, 24,454.09 and 9,761.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,719.55 : 24,454.09 = 9,761.78 : x
2. Step 2: Convert to fraction form
   17,719.55/24,454.09 = 9,761.78/x
3. Step 3: Cross multiply
   17,719.55x = 24,454.09 × 9,761.78
4. Step 4: Simplify right side
   17,719.55x = 238,715,300.01
5. Step 5: Solve for x
   x = 238,715,300.01/17,719.55
6. Step 6: Final answer
   x = 13,471.86