Finding the Fourth Proportional to 37.42, 55.81 and 34.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37.42 : 55.81 = 34.72 : x
2. Step 2: Convert to fraction form
   37.42/55.81 = 34.72/x
3. Step 3: Cross multiply
   37.42x = 55.81 × 34.72
4. Step 4: Simplify right side
   37.42x = 1,937.72
5. Step 5: Solve for x
   x = 1,937.72/37.42
6. Step 6: Final answer
   x = 51.78