Finding the Fourth Proportional to 7,057.30, 9,737.61 and 3,912.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,057.30 : 9,737.61 = 3,912.82 : x
2. Step 2: Convert to fraction form
   7,057.30/9,737.61 = 3,912.82/x
3. Step 3: Cross multiply
   7,057.30x = 9,737.61 × 3,912.82
4. Step 4: Simplify right side
   7,057.30x = 38,101,515.16
5. Step 5: Solve for x
   x = 38,101,515.16/7,057.30
6. Step 6: Final answer
   x = 5,398.88