Finding the Fourth Proportional to 111.49, 153.82 and 67.82

Step by Step Solution

1. Step 1: Write the proportion equation
   111.49 : 153.82 = 67.82 : x
2. Step 2: Convert to fraction form
   111.49/153.82 = 67.82/x
3. Step 3: Cross multiply
   111.49x = 153.82 × 67.82
4. Step 4: Simplify right side
   111.49x = 10,432.07
5. Step 5: Solve for x
   x = 10,432.07/111.49
6. Step 6: Final answer
   x = 93.57