Finding the Fourth Proportional to 111.52, 153.95 and 67.84

Step by Step Solution

1. Step 1: Write the proportion equation
   111.52 : 153.95 = 67.84 : x
2. Step 2: Convert to fraction form
   111.52/153.95 = 67.84/x
3. Step 3: Cross multiply
   111.52x = 153.95 × 67.84
4. Step 4: Simplify right side
   111.52x = 10,443.97
5. Step 5: Solve for x
   x = 10,443.97/111.52
6. Step 6: Final answer
   x = 93.65