Finding the Fourth Proportional to 111.12, 153.25 and 104.58

Step by Step Solution

1. Step 1: Write the proportion equation
   111.12 : 153.25 = 104.58 : x
2. Step 2: Convert to fraction form
   111.12/153.25 = 104.58/x
3. Step 3: Cross multiply
   111.12x = 153.25 × 104.58
4. Step 4: Simplify right side
   111.12x = 16,026.89
5. Step 5: Solve for x
   x = 16,026.89/111.12
6. Step 6: Final answer
   x = 144.23