Finding the Fourth Proportional to 111.42, 153.71 and 69.95

Step by Step Solution

1. Step 1: Write the proportion equation
   111.42 : 153.71 = 69.95 : x
2. Step 2: Convert to fraction form
   111.42/153.71 = 69.95/x
3. Step 3: Cross multiply
   111.42x = 153.71 × 69.95
4. Step 4: Simplify right side
   111.42x = 10,751.29
5. Step 5: Solve for x
   x = 10,751.29/111.42
6. Step 6: Final answer
   x = 96.49