Finding the Fourth Proportional to 8,083.29, 12,108.12 and 5,311.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,083.29 : 12,108.12 = 5,311.27 : x
2. Step 2: Convert to fraction form
   8,083.29/12,108.12 = 5,311.27/x
3. Step 3: Cross multiply
   8,083.29x = 12,108.12 × 5,311.27
4. Step 4: Simplify right side
   8,083.29x = 64,309,494.51
5. Step 5: Solve for x
   x = 64,309,494.51/8,083.29
6. Step 6: Final answer
   x = 7,955.86