Finding the Fourth Proportional to 8,605.98, 12,909.45 and 2,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,605.98 : 12,909.45 = 2,449.50 : x
2. Step 2: Convert to fraction form
   8,605.98/12,909.45 = 2,449.50/x
3. Step 3: Cross multiply
   8,605.98x = 12,909.45 × 2,449.50
4. Step 4: Simplify right side
   8,605.98x = 31,621,697.78
5. Step 5: Solve for x
   x = 31,621,697.78/8,605.98
6. Step 6: Final answer
   x = 3,674.39