Finding the Fourth Proportional to 7,040.20, 9,715.46 and 3,896.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,040.20 : 9,715.46 = 3,896.38 : x
2. Step 2: Convert to fraction form
   7,040.20/9,715.46 = 3,896.38/x
3. Step 3: Cross multiply
   7,040.20x = 9,715.46 × 3,896.38
4. Step 4: Simplify right side
   7,040.20x = 37,855,124.03
5. Step 5: Solve for x
   x = 37,855,124.03/7,040.20
6. Step 6: Final answer
   x = 5,377.00