Finding the Fourth Proportional to 123.33, 185.02 and 42.23

Step by Step Solution

1. Step 1: Write the proportion equation
   123.33 : 185.02 = 42.23 : x
2. Step 2: Convert to fraction form
   123.33/185.02 = 42.23/x
3. Step 3: Cross multiply
   123.33x = 185.02 × 42.23
4. Step 4: Simplify right side
   123.33x = 7,813.50
5. Step 5: Solve for x
   x = 7,813.50/123.33
6. Step 6: Final answer
   x = 63.35