Finding the Fourth Proportional to 8,106.71, 12,158.32 and 2,560.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,106.71 : 12,158.32 = 2,560.49 : x
2. Step 2: Convert to fraction form
   8,106.71/12,158.32 = 2,560.49/x
3. Step 3: Cross multiply
   8,106.71x = 12,158.32 × 2,560.49
4. Step 4: Simplify right side
   8,106.71x = 31,131,256.78
5. Step 5: Solve for x
   x = 31,131,256.78/8,106.71
6. Step 6: Final answer
   x = 3,840.18