Finding the Fourth Proportional to 2,585,716,073.72, 3,879,118,833.98 and 838,782,405.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585,716,073.72 : 3,879,118,833.98 = 838,782,405.80 : x
2. Step 2: Convert to fraction form
   2,585,716,073.72/3,879,118,833.98 = 838,782,405.80/x
3. Step 3: Cross multiply
   2,585,716,073.72x = 3,879,118,833.98 × 838,782,405.80
4. Step 4: Simplify right side
   2,585,716,073.72x = 3,253,736,627,949,835,264
5. Step 5: Solve for x
   x = 3,253,736,627,949,835,264/2,585,716,073.72
6. Step 6: Final answer
   x = 1,258,350,311.94