Finding the Fourth Proportional to 8,073.18, 12,105.39 and 2,806.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,073.18 : 12,105.39 = 2,806.86 : x
2. Step 2: Convert to fraction form
   8,073.18/12,105.39 = 2,806.86/x
3. Step 3: Cross multiply
   8,073.18x = 12,105.39 × 2,806.86
4. Step 4: Simplify right side
   8,073.18x = 33,978,134.98
5. Step 5: Solve for x
   x = 33,978,134.98/8,073.18
6. Step 6: Final answer
   x = 4,208.77