Finding the Fourth Proportional to 17,158.88, 23,672.32 and 10,439.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,158.88 : 23,672.32 = 10,439.12 : x
2. Step 2: Convert to fraction form
   17,158.88/23,672.32 = 10,439.12/x
3. Step 3: Cross multiply
   17,158.88x = 23,672.32 × 10,439.12
4. Step 4: Simplify right side
   17,158.88x = 247,118,189.16
5. Step 5: Solve for x
   x = 247,118,189.16/17,158.88
6. Step 6: Final answer
   x = 14,401.77