Finding the Fourth Proportional to 2,055,947,408.54, 3,078,891,581.68 and 1,856,973,656.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055,947,408.54 : 3,078,891,581.68 = 1,856,973,656.48 : x
2. Step 2: Convert to fraction form
   2,055,947,408.54/3,078,891,581.68 = 1,856,973,656.48/x
3. Step 3: Cross multiply
   2,055,947,408.54x = 3,078,891,581.68 × 1,856,973,656.48
4. Step 4: Simplify right side
   2,055,947,408.54x = 5,717,420,558,337,800,192
5. Step 5: Solve for x
   x = 5,717,420,558,337,800,192/2,055,947,408.54
6. Step 6: Final answer
   x = 2,780,917,709.56