Finding the Fourth Proportional to 7,016.31, 9,682.74 and 3,872.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,016.31 : 9,682.74 = 3,872.57 : x
2. Step 2: Convert to fraction form
   7,016.31/9,682.74 = 3,872.57/x
3. Step 3: Cross multiply
   7,016.31x = 9,682.74 × 3,872.57
4. Step 4: Simplify right side
   7,016.31x = 37,497,040.03
5. Step 5: Solve for x
   x = 37,497,040.03/7,016.31
6. Step 6: Final answer
   x = 5,344.27