Finding the Fourth Proportional to 7,105.50, 9,806.22 and 3,919.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,105.50 : 9,806.22 = 3,919.32 : x
2. Step 2: Convert to fraction form
   7,105.50/9,806.22 = 3,919.32/x
3. Step 3: Cross multiply
   7,105.50x = 9,806.22 × 3,919.32
4. Step 4: Simplify right side
   7,105.50x = 38,433,714.17
5. Step 5: Solve for x
   x = 38,433,714.17/7,105.50
6. Step 6: Final answer
   x = 5,409.01