Finding the Fourth Proportional to 17,109.04, 25,645.72 and 8,331.88

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.04 : 25,645.72 = 8,331.88 : x
2. Step 2: Convert to fraction form
   17,109.04/25,645.72 = 8,331.88/x
3. Step 3: Cross multiply
   17,109.04x = 25,645.72 × 8,331.88
4. Step 4: Simplify right side
   17,109.04x = 213,677,061.55
5. Step 5: Solve for x
   x = 213,677,061.55/17,109.04
6. Step 6: Final answer
   x = 12,489.13