Finding the Fourth Proportional to 111.02, 153.16 and 69.55

Step by Step Solution

1. Step 1: Write the proportion equation
   111.02 : 153.16 = 69.55 : x
2. Step 2: Convert to fraction form
   111.02/153.16 = 69.55/x
3. Step 3: Cross multiply
   111.02x = 153.16 × 69.55
4. Step 4: Simplify right side
   111.02x = 10,651.72
5. Step 5: Solve for x
   x = 10,651.72/111.02
6. Step 6: Final answer
   x = 95.95