Finding the Fourth Proportional to 8,290.41, 12,437.89 and 2,447.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,290.41 : 12,437.89 = 2,447.02 : x
2. Step 2: Convert to fraction form
   8,290.41/12,437.89 = 2,447.02/x
3. Step 3: Cross multiply
   8,290.41x = 12,437.89 × 2,447.02
4. Step 4: Simplify right side
   8,290.41x = 30,435,728.38
5. Step 5: Solve for x
   x = 30,435,728.38/8,290.41
6. Step 6: Final answer
   x = 3,671.20