Finding the Fourth Proportional to 2,627,569,434.12, 3,941,593,635.33 and 856,485,559.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627,569,434.12 : 3,941,593,635.33 = 856,485,559.59 : x
2. Step 2: Convert to fraction form
   2,627,569,434.12/3,941,593,635.33 = 856,485,559.59/x
3. Step 3: Cross multiply
   2,627,569,434.12x = 3,941,593,635.33 × 856,485,559.59
4. Step 4: Simplify right side
   2,627,569,434.12x = 3,375,918,030,428,337,152
5. Step 5: Solve for x
   x = 3,375,918,030,428,337,152/2,627,569,434.12
6. Step 6: Final answer
   x = 1,284,806,401.91