Finding the Fourth Proportional to 710,014,227.98, 979,800,839.31 and 396,751,016.12

Step by Step Solution

1. Step 1: Write the proportion equation
   710,014,227.98 : 979,800,839.31 = 396,751,016.12 : x
2. Step 2: Convert to fraction form
   710,014,227.98/979,800,839.31 = 396,751,016.12/x
3. Step 3: Cross multiply
   710,014,227.98x = 979,800,839.31 × 396,751,016.12
4. Step 4: Simplify right side
   710,014,227.98x = 388,736,978,591,471,296
5. Step 5: Solve for x
   x = 388,736,978,591,471,296/710,014,227.98
6. Step 6: Final answer
   x = 547,505,899.56