Finding the Fourth Proportional to 1,131,375,667.97, 1,561,434,341.96 and 685,325,943.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131,375,667.97 : 1,561,434,341.96 = 685,325,943.56 : x
2. Step 2: Convert to fraction form
   1,131,375,667.97/1,561,434,341.96 = 685,325,943.56/x
3. Step 3: Cross multiply
   1,131,375,667.97x = 1,561,434,341.96 × 685,325,943.56
4. Step 4: Simplify right side
   1,131,375,667.97x = 1,070,091,463,707,297,920
5. Step 5: Solve for x
   x = 1,070,091,463,707,297,920/1,131,375,667.97
6. Step 6: Final answer
   x = 945,832,135.16