Finding the Fourth Proportional to 8,111.94, 12,167.84 and 2,565.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,111.94 : 12,167.84 = 2,565.29 : x
2. Step 2: Convert to fraction form
   8,111.94/12,167.84 = 2,565.29/x
3. Step 3: Cross multiply
   8,111.94x = 12,167.84 × 2,565.29
4. Step 4: Simplify right side
   8,111.94x = 31,214,038.27
5. Step 5: Solve for x
   x = 31,214,038.27/8,111.94
6. Step 6: Final answer
   x = 3,847.91