Finding the Fourth Proportional to 111.35, 153.53 and 69.83

Step by Step Solution

1. Step 1: Write the proportion equation
   111.35 : 153.53 = 69.83 : x
2. Step 2: Convert to fraction form
   111.35/153.53 = 69.83/x
3. Step 3: Cross multiply
   111.35x = 153.53 × 69.83
4. Step 4: Simplify right side
   111.35x = 10,719.88
5. Step 5: Solve for x
   x = 10,719.88/111.35
6. Step 6: Final answer
   x = 96.28