Finding the Fourth Proportional to 8,396,205.42, 12,593,700.72 and 2,640,585.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,396,205.42 : 12,593,700.72 = 2,640,585.49 : x
2. Step 2: Convert to fraction form
   8,396,205.42/12,593,700.72 = 2,640,585.49/x
3. Step 3: Cross multiply
   8,396,205.42x = 12,593,700.72 × 2,640,585.49
4. Step 4: Simplify right side
   8,396,205.42x = 33,254,743,355,150.30
5. Step 5: Solve for x
   x = 33,254,743,355,150.30/8,396,205.42
6. Step 6: Final answer
   x = 3,960,687.20