Finding the Fourth Proportional to 8,498.98, 12,741.99 and 5,414.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,498.98 : 12,741.99 = 5,414.50 : x
2. Step 2: Convert to fraction form
   8,498.98/12,741.99 = 5,414.50/x
3. Step 3: Cross multiply
   8,498.98x = 12,741.99 × 5,414.50
4. Step 4: Simplify right side
   8,498.98x = 68,991,504.86
5. Step 5: Solve for x
   x = 68,991,504.86/8,498.98
6. Step 6: Final answer
   x = 8,117.62