Finding the Fourth Proportional to 2,275,629,889.32, 3,413,446,152.72 and 639,854,491.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275,629,889.32 : 3,413,446,152.72 = 639,854,491.32 : x
2. Step 2: Convert to fraction form
   2,275,629,889.32/3,413,446,152.72 = 639,854,491.32/x
3. Step 3: Cross multiply
   2,275,629,889.32x = 3,413,446,152.72 × 639,854,491.32
4. Step 4: Simplify right side
   2,275,629,889.32x = 2,184,108,851,696,866,560
5. Step 5: Solve for x
   x = 2,184,108,851,696,866,560/2,275,629,889.32
6. Step 6: Final answer
   x = 959,782,107.78