Finding the Fourth Proportional to 5,732.10, 7,900.71 and 3,959.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,732.10 : 7,900.71 = 3,959.82 : x
2. Step 2: Convert to fraction form
   5,732.10/7,900.71 = 3,959.82/x
3. Step 3: Cross multiply
   5,732.10x = 7,900.71 × 3,959.82
4. Step 4: Simplify right side
   5,732.10x = 31,285,389.47
5. Step 5: Solve for x
   x = 31,285,389.47/5,732.10
6. Step 6: Final answer
   x = 5,457.93