Finding the Fourth Proportional to 42.81, 58.98 and 35.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42.81 : 58.98 = 35.94 : x
2. Step 2: Convert to fraction form
   42.81/58.98 = 35.94/x
3. Step 3: Cross multiply
   42.81x = 58.98 × 35.94
4. Step 4: Simplify right side
   42.81x = 2,119.89
5. Step 5: Solve for x
   x = 2,119.89/42.81
6. Step 6: Final answer
   x = 49.52