Finding the Fourth Proportional to 105,087.27, 144,982.55 and 80,895.63

Step by Step Solution

1. Step 1: Write the proportion equation
   105,087.27 : 144,982.55 = 80,895.63 : x
2. Step 2: Convert to fraction form
   105,087.27/144,982.55 = 80,895.63/x
3. Step 3: Cross multiply
   105,087.27x = 144,982.55 × 80,895.63
4. Step 4: Simplify right side
   105,087.27x = 11,728,454,860.46
5. Step 5: Solve for x
   x = 11,728,454,860.46/105,087.27
6. Step 6: Final answer
   x = 111,606.81