Finding the Fourth Proportional to 8,155.62, 12,227.63 and 3,411.63

Step by Step Solution

1. Step 1: Write the proportion equation
   8,155.62 : 12,227.63 = 3,411.63 : x
2. Step 2: Convert to fraction form
   8,155.62/12,227.63 = 3,411.63/x
3. Step 3: Cross multiply
   8,155.62x = 12,227.63 × 3,411.63
4. Step 4: Simplify right side
   8,155.62x = 41,716,132.28
5. Step 5: Solve for x
   x = 41,716,132.28/8,155.62
6. Step 6: Final answer
   x = 5,115.02