Finding the Fourth Proportional to 8,227.27, 12,340.70 and 2,685.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,227.27 : 12,340.70 = 2,685.25 : x
2. Step 2: Convert to fraction form
   8,227.27/12,340.70 = 2,685.25/x
3. Step 3: Cross multiply
   8,227.27x = 12,340.70 × 2,685.25
4. Step 4: Simplify right side
   8,227.27x = 33,137,789.55
5. Step 5: Solve for x
   x = 33,137,789.55/8,227.27
6. Step 6: Final answer
   x = 4,027.80