Finding the Fourth Proportional to 105.94, 146.10 and 72.73

Step by Step Solution

1. Step 1: Write the proportion equation
   105.94 : 146.10 = 72.73 : x
2. Step 2: Convert to fraction form
   105.94/146.10 = 72.73/x
3. Step 3: Cross multiply
   105.94x = 146.10 × 72.73
4. Step 4: Simplify right side
   105.94x = 10,626.31
5. Step 5: Solve for x
   x = 10,626.31/105.94
6. Step 6: Final answer
   x = 100.30