Finding the Fourth Proportional to 6,105.96, 9,158.43 and 1,945.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,105.96 : 9,158.43 = 1,945.80 : x
2. Step 2: Convert to fraction form
   6,105.96/9,158.43 = 1,945.80/x
3. Step 3: Cross multiply
   6,105.96x = 9,158.43 × 1,945.80
4. Step 4: Simplify right side
   6,105.96x = 17,820,473.09
5. Step 5: Solve for x
   x = 17,820,473.09/6,105.96
6. Step 6: Final answer
   x = 2,918.54