Finding the Fourth Proportional to 17,124.55, 25,690.91 and 5,437.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,124.55 : 25,690.91 = 5,437.78 : x
2. Step 2: Convert to fraction form
   17,124.55/25,690.91 = 5,437.78/x
3. Step 3: Cross multiply
   17,124.55x = 25,690.91 × 5,437.78
4. Step 4: Simplify right side
   17,124.55x = 139,701,425.16
5. Step 5: Solve for x
   x = 139,701,425.16/17,124.55
6. Step 6: Final answer
   x = 8,157.96