Finding the Fourth Proportional to 111.07, 153.20 and 67.37

Step by Step Solution

1. Step 1: Write the proportion equation
   111.07 : 153.20 = 67.37 : x
2. Step 2: Convert to fraction form
   111.07/153.20 = 67.37/x
3. Step 3: Cross multiply
   111.07x = 153.20 × 67.37
4. Step 4: Simplify right side
   111.07x = 10,320.75
5. Step 5: Solve for x
   x = 10,320.75/111.07
6. Step 6: Final answer
   x = 92.93