Finding the Fourth Proportional to 123.20, 184.83 and 42.04

Step by Step Solution

1. Step 1: Write the proportion equation
   123.20 : 184.83 = 42.04 : x
2. Step 2: Convert to fraction form
   123.20/184.83 = 42.04/x
3. Step 3: Cross multiply
   123.20x = 184.83 × 42.04
4. Step 4: Simplify right side
   123.20x = 7,769.91
5. Step 5: Solve for x
   x = 7,769.91/123.20
6. Step 6: Final answer
   x = 63.07