Finding the Fourth Proportional to 111.14, 153.33 and 74.29

Step by Step Solution

1. Step 1: Write the proportion equation
   111.14 : 153.33 = 74.29 : x
2. Step 2: Convert to fraction form
   111.14/153.33 = 74.29/x
3. Step 3: Cross multiply
   111.14x = 153.33 × 74.29
4. Step 4: Simplify right side
   111.14x = 11,390.89
5. Step 5: Solve for x
   x = 11,390.89/111.14
6. Step 6: Final answer
   x = 102.49