Finding the Fourth Proportional to 1,345,093,155.54, 1,855,998,671.31 and 780,448,593.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,093,155.54 : 1,855,998,671.31 = 780,448,593.69 : x
2. Step 2: Convert to fraction form
   1,345,093,155.54/1,855,998,671.31 = 780,448,593.69/x
3. Step 3: Cross multiply
   1,345,093,155.54x = 1,855,998,671.31 × 780,448,593.69
4. Step 4: Simplify right side
   1,345,093,155.54x = 1,448,511,552,914,398,208
5. Step 5: Solve for x
   x = 1,448,511,552,914,398,208/1,345,093,155.54
6. Step 6: Final answer
   x = 1,076,885,676.62