Finding the Fourth Proportional to 3,940,345.92, 5,435,609.72 and 3,206,120.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940,345.92 : 5,435,609.72 = 3,206,120.04 : x
2. Step 2: Convert to fraction form
   3,940,345.92/5,435,609.72 = 3,206,120.04/x
3. Step 3: Cross multiply
   3,940,345.92x = 5,435,609.72 × 3,206,120.04
4. Step 4: Simplify right side
   3,940,345.92x = 17,427,217,253,541.50
5. Step 5: Solve for x
   x = 17,427,217,253,541.50/3,940,345.92
6. Step 6: Final answer
   x = 4,422,763.28