Finding the Fourth Proportional to 111.72, 154.14 and 68.01

Step by Step Solution

1. Step 1: Write the proportion equation
   111.72 : 154.14 = 68.01 : x
2. Step 2: Convert to fraction form
   111.72/154.14 = 68.01/x
3. Step 3: Cross multiply
   111.72x = 154.14 × 68.01
4. Step 4: Simplify right side
   111.72x = 10,483.06
5. Step 5: Solve for x
   x = 10,483.06/111.72
6. Step 6: Final answer
   x = 93.83