Finding the Fourth Proportional to 8,109.20, 12,163.72 and 2,562.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,109.20 : 12,163.72 = 2,562.54 : x
2. Step 2: Convert to fraction form
   8,109.20/12,163.72 = 2,562.54/x
3. Step 3: Cross multiply
   8,109.20x = 12,163.72 × 2,562.54
4. Step 4: Simplify right side
   8,109.20x = 31,170,019.05
5. Step 5: Solve for x
   x = 31,170,019.05/8,109.20
6. Step 6: Final answer
   x = 3,843.79