Finding the Fourth Proportional to 2,139,967,104.06, 2,942,682,438.54 and 1,857,218,662.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,967,104.06 : 2,942,682,438.54 = 1,857,218,662.71 : x
2. Step 2: Convert to fraction form
   2,139,967,104.06/2,942,682,438.54 = 1,857,218,662.71/x
3. Step 3: Cross multiply
   2,139,967,104.06x = 2,942,682,438.54 × 1,857,218,662.71
4. Step 4: Simplify right side
   2,139,967,104.06x = 5,465,204,743,285,460,992
5. Step 5: Solve for x
   x = 5,465,204,743,285,460,992/2,139,967,104.06
6. Step 6: Final answer
   x = 2,553,873,250.16