Finding the Fourth Proportional to 6,105.69, 9,158.43 and 1,945.64

Step by Step Solution

1. Step 1: Write the proportion equation
   6,105.69 : 9,158.43 = 1,945.64 : x
2. Step 2: Convert to fraction form
   6,105.69/9,158.43 = 1,945.64/x
3. Step 3: Cross multiply
   6,105.69x = 9,158.43 × 1,945.64
4. Step 4: Simplify right side
   6,105.69x = 17,819,037.94
5. Step 5: Solve for x
   x = 17,819,037.94/6,105.69
6. Step 6: Final answer
   x = 2,918.43