Finding the Fourth Proportional to 8,315.92, 12,471.72 and 2,470.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,315.92 : 12,471.72 = 2,470.96 : x
2. Step 2: Convert to fraction form
   8,315.92/12,471.72 = 2,470.96/x
3. Step 3: Cross multiply
   8,315.92x = 12,471.72 × 2,470.96
4. Step 4: Simplify right side
   8,315.92x = 30,817,121.25
5. Step 5: Solve for x
   x = 30,817,121.25/8,315.92
6. Step 6: Final answer
   x = 3,705.80