Finding the Fourth Proportional to 2,724,311,434.18, 4,086,079,131.90 and 858,714,677.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,724,311,434.18 : 4,086,079,131.90 = 858,714,677.32 : x
2. Step 2: Convert to fraction form
   2,724,311,434.18/4,086,079,131.90 = 858,714,677.32/x
3. Step 3: Cross multiply
   2,724,311,434.18x = 4,086,079,131.90 × 858,714,677.32
4. Step 4: Simplify right side
   2,724,311,434.18x = 3,508,776,123,253,494,272
5. Step 5: Solve for x
   x = 3,508,776,123,253,494,272/2,724,311,434.18
6. Step 6: Final answer
   x = 1,287,949,710.61