Finding the Fourth Proportional to 8,142.76, 12,215.12 and 2,594.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,142.76 : 12,215.12 = 2,594.16 : x
2. Step 2: Convert to fraction form
   8,142.76/12,215.12 = 2,594.16/x
3. Step 3: Cross multiply
   8,142.76x = 12,215.12 × 2,594.16
4. Step 4: Simplify right side
   8,142.76x = 31,687,975.70
5. Step 5: Solve for x
   x = 31,687,975.70/8,142.76
6. Step 6: Final answer
   x = 3,891.55