Finding the Fourth Proportional to 12,435,792.75, 18,645,673.37 and 5,245,403.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,435,792.75 : 18,645,673.37 = 5,245,403.31 : x
2. Step 2: Convert to fraction form
   12,435,792.75/18,645,673.37 = 5,245,403.31/x
3. Step 3: Cross multiply
   12,435,792.75x = 18,645,673.37 × 5,245,403.31
4. Step 4: Simplify right side
   12,435,792.75x = 97,804,076,785,949.83
5. Step 5: Solve for x
   x = 97,804,076,785,949.83/12,435,792.75
6. Step 6: Final answer
   x = 7,864,723.93