Finding the Fourth Proportional to 8,073.18, 12,105.87 and 3,391.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,073.18 : 12,105.87 = 3,391.86 : x
2. Step 2: Convert to fraction form
   8,073.18/12,105.87 = 3,391.86/x
3. Step 3: Cross multiply
   8,073.18x = 12,105.87 × 3,391.86
4. Step 4: Simplify right side
   8,073.18x = 41,061,416.22
5. Step 5: Solve for x
   x = 41,061,416.22/8,073.18
6. Step 6: Final answer
   x = 5,086.15