Finding the Fourth Proportional to 105.88, 146.28 and 73.30

Step by Step Solution

1. Step 1: Write the proportion equation
   105.88 : 146.28 = 73.30 : x
2. Step 2: Convert to fraction form
   105.88/146.28 = 73.30/x
3. Step 3: Cross multiply
   105.88x = 146.28 × 73.30
4. Step 4: Simplify right side
   105.88x = 10,722.32
5. Step 5: Solve for x
   x = 10,722.32/105.88
6. Step 6: Final answer
   x = 101.27