Finding the Fourth Proportional to 2,308,678,499.72, 3,185,890,974.24 and 1,251,383,770.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,678,499.72 : 3,185,890,974.24 = 1,251,383,770.76 : x
2. Step 2: Convert to fraction form
   2,308,678,499.72/3,185,890,974.24 = 1,251,383,770.76/x
3. Step 3: Cross multiply
   2,308,678,499.72x = 3,185,890,974.24 × 1,251,383,770.76
4. Step 4: Simplify right side
   2,308,678,499.72x = 3,986,772,260,574,701,056
5. Step 5: Solve for x
   x = 3,986,772,260,574,701,056/2,308,678,499.72
6. Step 6: Final answer
   x = 1,726,863,338.08