Finding the Fourth Proportional to 17,141.29, 25,706.43 and 5,451.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,141.29 : 25,706.43 = 5,451.78 : x
2. Step 2: Convert to fraction form
   17,141.29/25,706.43 = 5,451.78/x
3. Step 3: Cross multiply
   17,141.29x = 25,706.43 × 5,451.78
4. Step 4: Simplify right side
   17,141.29x = 140,145,800.95
5. Step 5: Solve for x
   x = 140,145,800.95/17,141.29
6. Step 6: Final answer
   x = 8,175.92