Finding the Fourth Proportional to 123.29, 184.82 and 74.42

Step by Step Solution

1. Step 1: Write the proportion equation
   123.29 : 184.82 = 74.42 : x
2. Step 2: Convert to fraction form
   123.29/184.82 = 74.42/x
3. Step 3: Cross multiply
   123.29x = 184.82 × 74.42
4. Step 4: Simplify right side
   123.29x = 13,754.30
5. Step 5: Solve for x
   x = 13,754.30/123.29
6. Step 6: Final answer
   x = 111.56