Finding the Fourth Proportional to 120,994,155,198.81, 166,986,575,746.71 and 68,863,560,653.95

Step by Step Solution

1. Step 1: Write the proportion equation
   120,994,155,198.81 : 166,986,575,746.71 = 68,863,560,653.95 : x
2. Step 2: Convert to fraction form
   120,994,155,198.81/166,986,575,746.71 = 68,863,560,653.95/x
3. Step 3: Cross multiply
   120,994,155,198.81x = 166,986,575,746.71 × 68,863,560,653.95
4. Step 4: Simplify right side
   120,994,155,198.81x = 11,499,290,187,328,978,419,712
5. Step 5: Solve for x
   x = 11,499,290,187,328,978,419,712/120,994,155,198.81
6. Step 6: Final answer
   x = 95,040,046,921.56