Finding the Fourth Proportional to 2,579,447,799.78, 3,863,500,334.82 and 2,131,716,236.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579,447,799.78 : 3,863,500,334.82 = 2,131,716,236.82 : x
2. Step 2: Convert to fraction form
   2,579,447,799.78/3,863,500,334.82 = 2,131,716,236.82/x
3. Step 3: Cross multiply
   2,579,447,799.78x = 3,863,500,334.82 × 2,131,716,236.82
4. Step 4: Simplify right side
   2,579,447,799.78x = 8,235,886,394,695,300,096
5. Step 5: Solve for x
   x = 8,235,886,394,695,300,096/2,579,447,799.78
6. Step 6: Final answer
   x = 3,192,887,406.13