Finding the Fourth Proportional to 111.51, 153.84 and 67.25

Step by Step Solution

1. Step 1: Write the proportion equation
   111.51 : 153.84 = 67.25 : x
2. Step 2: Convert to fraction form
   111.51/153.84 = 67.25/x
3. Step 3: Cross multiply
   111.51x = 153.84 × 67.25
4. Step 4: Simplify right side
   111.51x = 10,345.74
5. Step 5: Solve for x
   x = 10,345.74/111.51
6. Step 6: Final answer
   x = 92.78