Finding the Fourth Proportional to 59.29, 88.97 and 18.72

Step by Step Solution

1. Step 1: Write the proportion equation
   59.29 : 88.97 = 18.72 : x
2. Step 2: Convert to fraction form
   59.29/88.97 = 18.72/x
3. Step 3: Cross multiply
   59.29x = 88.97 × 18.72
4. Step 4: Simplify right side
   59.29x = 1,665.42
5. Step 5: Solve for x
   x = 1,665.42/59.29
6. Step 6: Final answer
   x = 28.09