Finding the Fourth Proportional to 111.27, 153.53 and 69.81

Step by Step Solution

1. Step 1: Write the proportion equation
   111.27 : 153.53 = 69.81 : x
2. Step 2: Convert to fraction form
   111.27/153.53 = 69.81/x
3. Step 3: Cross multiply
   111.27x = 153.53 × 69.81
4. Step 4: Simplify right side
   111.27x = 10,717.93
5. Step 5: Solve for x
   x = 10,717.93/111.27
6. Step 6: Final answer
   x = 96.32