Finding the Fourth Proportional to 111.06, 152.70 and 104.82

Step by Step Solution

1. Step 1: Write the proportion equation
   111.06 : 152.70 = 104.82 : x
2. Step 2: Convert to fraction form
   111.06/152.70 = 104.82/x
3. Step 3: Cross multiply
   111.06x = 152.70 × 104.82
4. Step 4: Simplify right side
   111.06x = 16,006.01
5. Step 5: Solve for x
   x = 16,006.01/111.06
6. Step 6: Final answer
   x = 144.12