Finding the Fourth Proportional to 2,231,534,422.82, 3,347,785,866.72 and 678,785,387.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231,534,422.82 : 3,347,785,866.72 = 678,785,387.96 : x
2. Step 2: Convert to fraction form
   2,231,534,422.82/3,347,785,866.72 = 678,785,387.96/x
3. Step 3: Cross multiply
   2,231,534,422.82x = 3,347,785,866.72 × 678,785,387.96
4. Step 4: Simplify right side
   2,231,534,422.82x = 2,272,428,128,348,540,160
5. Step 5: Solve for x
   x = 2,272,428,128,348,540,160/2,231,534,422.82
6. Step 6: Final answer
   x = 1,018,325,375.18