Finding the Fourth Proportional to 2,789,401,998.90, 3,849,374,828.69 and 1,536,338,854.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789,401,998.90 : 3,849,374,828.69 = 1,536,338,854.80 : x
2. Step 2: Convert to fraction form
   2,789,401,998.90/3,849,374,828.69 = 1,536,338,854.80/x
3. Step 3: Cross multiply
   2,789,401,998.90x = 3,849,374,828.69 × 1,536,338,854.80
4. Step 4: Simplify right side
   2,789,401,998.90x = 5,913,944,115,997,858,816
5. Step 5: Solve for x
   x = 5,913,944,115,997,858,816/2,789,401,998.90
6. Step 6: Final answer
   x = 2,120,147,658.29