Finding the Fourth Proportional to 105.97, 146.01 and 73.18

Step by Step Solution

1. Step 1: Write the proportion equation
   105.97 : 146.01 = 73.18 : x
2. Step 2: Convert to fraction form
   105.97/146.01 = 73.18/x
3. Step 3: Cross multiply
   105.97x = 146.01 × 73.18
4. Step 4: Simplify right side
   105.97x = 10,685.01
5. Step 5: Solve for x
   x = 10,685.01/105.97
6. Step 6: Final answer
   x = 100.83