Finding the Fourth Proportional to 111.82, 154.38 and 75.01

Step by Step Solution

1. Step 1: Write the proportion equation
   111.82 : 154.38 = 75.01 : x
2. Step 2: Convert to fraction form
   111.82/154.38 = 75.01/x
3. Step 3: Cross multiply
   111.82x = 154.38 × 75.01
4. Step 4: Simplify right side
   111.82x = 11,580.52
5. Step 5: Solve for x
   x = 11,580.52/111.82
6. Step 6: Final answer
   x = 103.56