Finding the Fourth Proportional to 111.32, 153.68 and 69.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111.32 : 153.68 = 69.94 : x
2. Step 2: Convert to fraction form
   111.32/153.68 = 69.94/x
3. Step 3: Cross multiply
   111.32x = 153.68 × 69.94
4. Step 4: Simplify right side
   111.32x = 10,747.61
5. Step 5: Solve for x
   x = 10,747.61/111.32
6. Step 6: Final answer
   x = 96.54