Finding the Fourth Proportional to 2,141,669,603,851.70, 3,212,928,384,605.10 and 611,858,929,008.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141,669,603,851.70 : 3,212,928,384,605.10 = 611,858,929,008.10 : x
2. Step 2: Convert to fraction form
   2,141,669,603,851.70/3,212,928,384,605.10 = 611,858,929,008.10/x
3. Step 3: Cross multiply
   2,141,669,603,851.70x = 3,212,928,384,605.10 × 611,858,929,008.10
4. Step 4: Simplify right side
   2,141,669,603,851.70x = 1,965,858,920,384,201,188,442,112
5. Step 5: Solve for x
   x = 1,965,858,920,384,201,188,442,112/2,141,669,603,851.70
6. Step 6: Final answer
   x = 917,909,521,080.51