Finding the Fourth Proportional to 123.94, 185.84 and 42.74

Step by Step Solution

1. Step 1: Write the proportion equation
   123.94 : 185.84 = 42.74 : x
2. Step 2: Convert to fraction form
   123.94/185.84 = 42.74/x
3. Step 3: Cross multiply
   123.94x = 185.84 × 42.74
4. Step 4: Simplify right side
   123.94x = 7,942.80
5. Step 5: Solve for x
   x = 7,942.80/123.94
6. Step 6: Final answer
   x = 64.09