Finding the Fourth Proportional to 3,608,482,978.88, 5,412,748,383.36 and 1,397,938,196.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608,482,978.88 : 5,412,748,383.36 = 1,397,938,196.48 : x
2. Step 2: Convert to fraction form
   3,608,482,978.88/5,412,748,383.36 = 1,397,938,196.48/x
3. Step 3: Cross multiply
   3,608,482,978.88x = 5,412,748,383.36 × 1,397,938,196.48
4. Step 4: Simplify right side
   3,608,482,978.88x = 7,566,687,713,034,313,728
5. Step 5: Solve for x
   x = 7,566,687,713,034,313,728/3,608,482,978.88
6. Step 6: Final answer
   x = 2,096,916,559.49