Finding the Fourth Proportional to 8,414.57, 12,621.39 and 2,570.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,414.57 : 12,621.39 = 2,570.72 : x
2. Step 2: Convert to fraction form
   8,414.57/12,621.39 = 2,570.72/x
3. Step 3: Cross multiply
   8,414.57x = 12,621.39 × 2,570.72
4. Step 4: Simplify right side
   8,414.57x = 32,445,996.59
5. Step 5: Solve for x
   x = 32,445,996.59/8,414.57
6. Step 6: Final answer
   x = 3,855.93