Finding the Fourth Proportional to 8,362.47, 12,545.69 and 2,439.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,362.47 : 12,545.69 = 2,439.55 : x
2. Step 2: Convert to fraction form
   8,362.47/12,545.69 = 2,439.55/x
3. Step 3: Cross multiply
   8,362.47x = 12,545.69 × 2,439.55
4. Step 4: Simplify right side
   8,362.47x = 30,605,841.52
5. Step 5: Solve for x
   x = 30,605,841.52/8,362.47
6. Step 6: Final answer
   x = 3,659.90