Finding the Fourth Proportional to 6,105.69, 9,159.54 and 2,155.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,105.69 : 9,159.54 = 2,155.83 : x
2. Step 2: Convert to fraction form
   6,105.69/9,159.54 = 2,155.83/x
3. Step 3: Cross multiply
   6,105.69x = 9,159.54 × 2,155.83
4. Step 4: Simplify right side
   6,105.69x = 19,746,411.12
5. Step 5: Solve for x
   x = 19,746,411.12/6,105.69
6. Step 6: Final answer
   x = 3,234.10