Finding the Fourth Proportional to 59.02, 81.47 and 42.73

Step by Step Solution

1. Step 1: Write the proportion equation
   59.02 : 81.47 = 42.73 : x
2. Step 2: Convert to fraction form
   59.02/81.47 = 42.73/x
3. Step 3: Cross multiply
   59.02x = 81.47 × 42.73
4. Step 4: Simplify right side
   59.02x = 3,481.12
5. Step 5: Solve for x
   x = 3,481.12/59.02
6. Step 6: Final answer
   x = 58.98