Finding the Fourth Proportional to 17,408.72, 26,116.83 and 5,559.71

Step by Step Solution

1. Step 1: Write the proportion equation
   17,408.72 : 26,116.83 = 5,559.71 : x
2. Step 2: Convert to fraction form
   17,408.72/26,116.83 = 5,559.71/x
3. Step 3: Cross multiply
   17,408.72x = 26,116.83 × 5,559.71
4. Step 4: Simplify right side
   17,408.72x = 145,202,000.92
5. Step 5: Solve for x
   x = 145,202,000.92/17,408.72
6. Step 6: Final answer
   x = 8,340.76