Finding the Fourth Proportional to 12,396,399.89, 18,583,949.82 and 4,308,324.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,396,399.89 : 18,583,949.82 = 4,308,324.71 : x
2. Step 2: Convert to fraction form
   12,396,399.89/18,583,949.82 = 4,308,324.71/x
3. Step 3: Cross multiply
   12,396,399.89x = 18,583,949.82 × 4,308,324.71
4. Step 4: Simplify right side
   12,396,399.89x = 80,065,690,218,906.05
5. Step 5: Solve for x
   x = 80,065,690,218,906.05/12,396,399.89
6. Step 6: Final answer
   x = 6,458,785.69