Finding the Fourth Proportional to 111.06, 153.27 and 69.64

Step by Step Solution

1. Step 1: Write the proportion equation
   111.06 : 153.27 = 69.64 : x
2. Step 2: Convert to fraction form
   111.06/153.27 = 69.64/x
3. Step 3: Cross multiply
   111.06x = 153.27 × 69.64
4. Step 4: Simplify right side
   111.06x = 10,673.72
5. Step 5: Solve for x
   x = 10,673.72/111.06
6. Step 6: Final answer
   x = 96.11