Finding the Fourth Proportional to 8,108.18, 12,167.05 and 3,427.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,108.18 : 12,167.05 = 3,427.89 : x
2. Step 2: Convert to fraction form
   8,108.18/12,167.05 = 3,427.89/x
3. Step 3: Cross multiply
   8,108.18x = 12,167.05 × 3,427.89
4. Step 4: Simplify right side
   8,108.18x = 41,707,309.02
5. Step 5: Solve for x
   x = 41,707,309.02/8,108.18
6. Step 6: Final answer
   x = 5,143.86