Finding the Fourth Proportional to 144,647.97, 199,612.89 and 80,986.83

Step by Step Solution

1. Step 1: Write the proportion equation
   144,647.97 : 199,612.89 = 80,986.83 : x
2. Step 2: Convert to fraction form
   144,647.97/199,612.89 = 80,986.83/x
3. Step 3: Cross multiply
   144,647.97x = 199,612.89 × 80,986.83
4. Step 4: Simplify right side
   144,647.97x = 16,166,015,188.24
5. Step 5: Solve for x
   x = 16,166,015,188.24/144,647.97
6. Step 6: Final answer
   x = 111,761.09