Finding the Fourth Proportional to 111.69, 167.60 and 42.33

Step by Step Solution

1. Step 1: Write the proportion equation
   111.69 : 167.60 = 42.33 : x
2. Step 2: Convert to fraction form
   111.69/167.60 = 42.33/x
3. Step 3: Cross multiply
   111.69x = 167.60 × 42.33
4. Step 4: Simplify right side
   111.69x = 7,094.51
5. Step 5: Solve for x
   x = 7,094.51/111.69
6. Step 6: Final answer
   x = 63.52