Finding the Fourth Proportional to 2,645,917,091.82, 3,968,029,218.69 and 874,958,830.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645,917,091.82 : 3,968,029,218.69 = 874,958,830.38 : x
2. Step 2: Convert to fraction form
   2,645,917,091.82/3,968,029,218.69 = 874,958,830.38/x
3. Step 3: Cross multiply
   2,645,917,091.82x = 3,968,029,218.69 × 874,958,830.38
4. Step 4: Simplify right side
   2,645,917,091.82x = 3,471,862,204,098,667,520
5. Step 5: Solve for x
   x = 3,471,862,204,098,667,520/2,645,917,091.82
6. Step 6: Final answer
   x = 1,312,158,349.49