Finding the Fourth Proportional to 8,142.72, 12,209.52 and 2,595.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,142.72 : 12,209.52 = 2,595.06 : x
2. Step 2: Convert to fraction form
   8,142.72/12,209.52 = 2,595.06/x
3. Step 3: Cross multiply
   8,142.72x = 12,209.52 × 2,595.06
4. Step 4: Simplify right side
   8,142.72x = 31,684,436.97
5. Step 5: Solve for x
   x = 31,684,436.97/8,142.72
6. Step 6: Final answer
   x = 3,891.14