Finding the Fourth Proportional to 8,498.28, 12,747.78 and 2,655.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,498.28 : 12,747.78 = 2,655.12 : x
2. Step 2: Convert to fraction form
   8,498.28/12,747.78 = 2,655.12/x
3. Step 3: Cross multiply
   8,498.28x = 12,747.78 × 2,655.12
4. Step 4: Simplify right side
   8,498.28x = 33,846,885.63
5. Step 5: Solve for x
   x = 33,846,885.63/8,498.28
6. Step 6: Final answer
   x = 3,982.79