Finding the Fourth Proportional to 354,108,725.69, 488,647,921.43 and 195,340,685.03

Step by Step Solution

1. Step 1: Write the proportion equation
   354,108,725.69 : 488,647,921.43 = 195,340,685.03 : x
2. Step 2: Convert to fraction form
   354,108,725.69/488,647,921.43 = 195,340,685.03/x
3. Step 3: Cross multiply
   354,108,725.69x = 488,647,921.43 × 195,340,685.03
4. Step 4: Simplify right side
   354,108,725.69x = 95,452,819,707,201,872
5. Step 5: Solve for x
   x = 95,452,819,707,201,872/354,108,725.69
6. Step 6: Final answer
   x = 269,557,943.04