Finding the Fourth Proportional to 6,142.91, 9,215.81 and 1,760.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,142.91 : 9,215.81 = 1,760.25 : x
2. Step 2: Convert to fraction form
   6,142.91/9,215.81 = 1,760.25/x
3. Step 3: Cross multiply
   6,142.91x = 9,215.81 × 1,760.25
4. Step 4: Simplify right side
   6,142.91x = 16,222,155.31
5. Step 5: Solve for x
   x = 16,222,155.31/6,142.91
6. Step 6: Final answer
   x = 2,640.79