Finding the Fourth Proportional to 8,105.71, 12,156.82 and 2,559.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,105.71 : 12,156.82 = 2,559.49 : x
2. Step 2: Convert to fraction form
   8,105.71/12,156.82 = 2,559.49/x
3. Step 3: Cross multiply
   8,105.71x = 12,156.82 × 2,559.49
4. Step 4: Simplify right side
   8,105.71x = 31,115,259.22
5. Step 5: Solve for x
   x = 31,115,259.22/8,105.71
6. Step 6: Final answer
   x = 3,838.68