Finding the Fourth Proportional to 17,118.12, 25,679.61 and 5,432.34

Step by Step Solution

1. Step 1: Write the proportion equation
   17,118.12 : 25,679.61 = 5,432.34 : x
2. Step 2: Convert to fraction form
   17,118.12/25,679.61 = 5,432.34/x
3. Step 3: Cross multiply
   17,118.12x = 25,679.61 × 5,432.34
4. Step 4: Simplify right side
   17,118.12x = 139,500,372.59
5. Step 5: Solve for x
   x = 139,500,372.59/17,118.12
6. Step 6: Final answer
   x = 8,149.28