Finding the Fourth Proportional to 7,105.91, 9,806.20 and 3,962.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,105.91 : 9,806.20 = 3,962.30 : x
2. Step 2: Convert to fraction form
   7,105.91/9,806.20 = 3,962.30/x
3. Step 3: Cross multiply
   7,105.91x = 9,806.20 × 3,962.30
4. Step 4: Simplify right side
   7,105.91x = 38,855,047.32
5. Step 5: Solve for x
   x = 38,855,047.32/7,105.91
6. Step 6: Final answer
   x = 5,467.99