Finding the Fourth Proportional to 17,116.92, 25,658.98 and 5,421.94

Step by Step Solution

1. Step 1: Write the proportion equation
   17,116.92 : 25,658.98 = 5,421.94 : x
2. Step 2: Convert to fraction form
   17,116.92/25,658.98 = 5,421.94/x
3. Step 3: Cross multiply
   17,116.92x = 25,658.98 × 5,421.94
4. Step 4: Simplify right side
   17,116.92x = 139,121,372.32
5. Step 5: Solve for x
   x = 139,121,372.32/17,116.92
6. Step 6: Final answer
   x = 8,127.71