Finding the Fourth Proportional to 111.14, 153.39 and 67.51

Step by Step Solution

1. Step 1: Write the proportion equation
   111.14 : 153.39 = 67.51 : x
2. Step 2: Convert to fraction form
   111.14/153.39 = 67.51/x
3. Step 3: Cross multiply
   111.14x = 153.39 × 67.51
4. Step 4: Simplify right side
   111.14x = 10,355.23
5. Step 5: Solve for x
   x = 10,355.23/111.14
6. Step 6: Final answer
   x = 93.18