Finding the Fourth Proportional to 7,127.34, 9,835.98 and 3,983.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,127.34 : 9,835.98 = 3,983.72 : x
2. Step 2: Convert to fraction form
   7,127.34/9,835.98 = 3,983.72/x
3. Step 3: Cross multiply
   7,127.34x = 9,835.98 × 3,983.72
4. Step 4: Simplify right side
   7,127.34x = 39,183,790.25
5. Step 5: Solve for x
   x = 39,183,790.25/7,127.34
6. Step 6: Final answer
   x = 5,497.67