Finding the Fourth Proportional to 59.34, 81.92 and 42.74

Step by Step Solution

1. Step 1: Write the proportion equation
   59.34 : 81.92 = 42.74 : x
2. Step 2: Convert to fraction form
   59.34/81.92 = 42.74/x
3. Step 3: Cross multiply
   59.34x = 81.92 × 42.74
4. Step 4: Simplify right side
   59.34x = 3,500.64
5. Step 5: Solve for x
   x = 3,500.64/59.34
6. Step 6: Final answer
   x = 58.99