Finding the Fourth Proportional to 7,126.72, 9,834.90 and 3,982.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,126.72 : 9,834.90 = 3,982.96 : x
2. Step 2: Convert to fraction form
   7,126.72/9,834.90 = 3,982.96/x
3. Step 3: Cross multiply
   7,126.72x = 9,834.90 × 3,982.96
4. Step 4: Simplify right side
   7,126.72x = 39,172,013.30
5. Step 5: Solve for x
   x = 39,172,013.30/7,126.72
6. Step 6: Final answer
   x = 5,496.50