Finding the Fourth Proportional to 2,789,401,997.40, 3,849,374,826.61 and 1,536,338,853.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789,401,997.40 : 3,849,374,826.61 = 1,536,338,853.30 : x
2. Step 2: Convert to fraction form
   2,789,401,997.40/3,849,374,826.61 = 1,536,338,853.30/x
3. Step 3: Cross multiply
   2,789,401,997.40x = 3,849,374,826.61 × 1,536,338,853.30
4. Step 4: Simplify right side
   2,789,401,997.40x = 5,913,944,107,046,680,576
5. Step 5: Solve for x
   x = 5,913,944,107,046,680,576/2,789,401,997.40
6. Step 6: Final answer
   x = 2,120,147,656.22