Finding the Fourth Proportional to 2,133,128,796.78, 3,196,787,977.80 and 1,200,896,297.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,133,128,796.78 : 3,196,787,977.80 = 1,200,896,297.58 : x
2. Step 2: Convert to fraction form
   2,133,128,796.78/3,196,787,977.80 = 1,200,896,297.58/x
3. Step 3: Cross multiply
   2,133,128,796.78x = 3,196,787,977.80 × 1,200,896,297.58
4. Step 4: Simplify right side
   2,133,128,796.78x = 3,839,010,846,688,275,456
5. Step 5: Solve for x
   x = 3,839,010,846,688,275,456/2,133,128,796.78
6. Step 6: Final answer
   x = 1,799,708,884.19