Finding the Fourth Proportional to 111.14, 153.35 and 69.69

Step by Step Solution

1. Step 1: Write the proportion equation
   111.14 : 153.35 = 69.69 : x
2. Step 2: Convert to fraction form
   111.14/153.35 = 69.69/x
3. Step 3: Cross multiply
   111.14x = 153.35 × 69.69
4. Step 4: Simplify right side
   111.14x = 10,686.61
5. Step 5: Solve for x
   x = 10,686.61/111.14
6. Step 6: Final answer
   x = 96.16