Finding the Fourth Proportional to 8,499.10, 12,748.56 and 2,655.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.10 : 12,748.56 = 2,655.76 : x
2. Step 2: Convert to fraction form
   8,499.10/12,748.56 = 2,655.76/x
3. Step 3: Cross multiply
   8,499.10x = 12,748.56 × 2,655.76
4. Step 4: Simplify right side
   8,499.10x = 33,857,115.71
5. Step 5: Solve for x
   x = 33,857,115.71/8,499.10
6. Step 6: Final answer
   x = 3,983.61