Finding the Fourth Proportional to 2,155,568,386.43, 2,974,667,046.63 and 1,251,408,217.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,568,386.43 : 2,974,667,046.63 = 1,251,408,217.61 : x
2. Step 2: Convert to fraction form
   2,155,568,386.43/2,974,667,046.63 = 1,251,408,217.61/x
3. Step 3: Cross multiply
   2,155,568,386.43x = 2,974,667,046.63 × 1,251,408,217.61
4. Step 4: Simplify right side
   2,155,568,386.43x = 3,722,522,786,791,578,112
5. Step 5: Solve for x
   x = 3,722,522,786,791,578,112/2,155,568,386.43
6. Step 6: Final answer
   x = 1,726,933,281.37