Finding the Fourth Proportional to 111.54, 167.10 and 100.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111.54 : 167.10 = 100.08 : x
2. Step 2: Convert to fraction form
   111.54/167.10 = 100.08/x
3. Step 3: Cross multiply
   111.54x = 167.10 × 100.08
4. Step 4: Simplify right side
   111.54x = 16,723.37
5. Step 5: Solve for x
   x = 16,723.37/111.54
6. Step 6: Final answer
   x = 149.93