Finding the Fourth Proportional to 2,620,836,485.76, 3,931,807,525.89 and 850,069,681.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620,836,485.76 : 3,931,807,525.89 = 850,069,681.50 : x
2. Step 2: Convert to fraction form
   2,620,836,485.76/3,931,807,525.89 = 850,069,681.50/x
3. Step 3: Cross multiply
   2,620,836,485.76x = 3,931,807,525.89 × 850,069,681.50
4. Step 4: Simplify right side
   2,620,836,485.76x = 3,342,310,371,264,338,944
5. Step 5: Solve for x
   x = 3,342,310,371,264,338,944/2,620,836,485.76
6. Step 6: Final answer
   x = 1,275,283,822.33