Finding the Fourth Proportional to 8,317.71, 12,478.61 and 2,474.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,317.71 : 12,478.61 = 2,474.31 : x
2. Step 2: Convert to fraction form
   8,317.71/12,478.61 = 2,474.31/x
3. Step 3: Cross multiply
   8,317.71x = 12,478.61 × 2,474.31
4. Step 4: Simplify right side
   8,317.71x = 30,876,002.49
5. Step 5: Solve for x
   x = 30,876,002.49/8,317.71
6. Step 6: Final answer
   x = 3,712.08