Finding the Fourth Proportional to 8,256,815,939.33, 12,380,155,062.87 and 3,208,778,104.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,256,815,939.33 : 12,380,155,062.87 = 3,208,778,104.50 : x
2. Step 2: Convert to fraction form
   8,256,815,939.33/12,380,155,062.87 = 3,208,778,104.50/x
3. Step 3: Cross multiply
   8,256,815,939.33x = 12,380,155,062.87 × 3,208,778,104.50
4. Step 4: Simplify right side
   8,256,815,939.33x = 39,725,170,496,052,076,544
5. Step 5: Solve for x
   x = 39,725,170,496,052,076,544/8,256,815,939.33
6. Step 6: Final answer
   x = 4,811,197,292.99