Finding the Fourth Proportional to 111.06, 153.23 and 76.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111.06 : 153.23 = 76.10 : x
2. Step 2: Convert to fraction form
   111.06/153.23 = 76.10/x
3. Step 3: Cross multiply
   111.06x = 153.23 × 76.10
4. Step 4: Simplify right side
   111.06x = 11,660.42
5. Step 5: Solve for x
   x = 11,660.42/111.06
6. Step 6: Final answer
   x = 104.99