Finding the Fourth Proportional to 123.15, 184.74 and 42.01

Step by Step Solution

1. Step 1: Write the proportion equation
   123.15 : 184.74 = 42.01 : x
2. Step 2: Convert to fraction form
   123.15/184.74 = 42.01/x
3. Step 3: Cross multiply
   123.15x = 184.74 × 42.01
4. Step 4: Simplify right side
   123.15x = 7,760.93
5. Step 5: Solve for x
   x = 7,760.93/123.15
6. Step 6: Final answer
   x = 63.02