Finding the Fourth Proportional to 5,105.31, 7,650.79 and 4,060.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,105.31 : 7,650.79 = 4,060.68 : x
2. Step 2: Convert to fraction form
   5,105.31/7,650.79 = 4,060.68/x
3. Step 3: Cross multiply
   5,105.31x = 7,650.79 × 4,060.68
4. Step 4: Simplify right side
   5,105.31x = 31,067,414.13
5. Step 5: Solve for x
   x = 31,067,414.13/5,105.31
6. Step 6: Final answer
   x = 6,085.31