Finding the Fourth Proportional to 105.04, 144.72 and 73.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105.04 : 144.72 = 73.84 : x
2. Step 2: Convert to fraction form
   105.04/144.72 = 73.84/x
3. Step 3: Cross multiply
   105.04x = 144.72 × 73.84
4. Step 4: Simplify right side
   105.04x = 10,686.12
5. Step 5: Solve for x
   x = 10,686.12/105.04
6. Step 6: Final answer
   x = 101.73