Finding the Fourth Proportional to 8,112.64, 12,167.89 and 2,566.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,112.64 : 12,167.89 = 2,566.54 : x
2. Step 2: Convert to fraction form
   8,112.64/12,167.89 = 2,566.54/x
3. Step 3: Cross multiply
   8,112.64x = 12,167.89 × 2,566.54
4. Step 4: Simplify right side
   8,112.64x = 31,229,376.40
5. Step 5: Solve for x
   x = 31,229,376.40/8,112.64
6. Step 6: Final answer
   x = 3,849.47