Finding the Fourth Proportional to 7,040.03, 9,715.15 and 3,853.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,040.03 : 9,715.15 = 3,853.31 : x
2. Step 2: Convert to fraction form
   7,040.03/9,715.15 = 3,853.31/x
3. Step 3: Cross multiply
   7,040.03x = 9,715.15 × 3,853.31
4. Step 4: Simplify right side
   7,040.03x = 37,435,484.65
5. Step 5: Solve for x
   x = 37,435,484.65/7,040.03
6. Step 6: Final answer
   x = 5,317.52