Finding the Fourth Proportional to 59.31, 88.95 and 18.71

Step by Step Solution

1. Step 1: Write the proportion equation
   59.31 : 88.95 = 18.71 : x
2. Step 2: Convert to fraction form
   59.31/88.95 = 18.71/x
3. Step 3: Cross multiply
   59.31x = 88.95 × 18.71
4. Step 4: Simplify right side
   59.31x = 1,664.25
5. Step 5: Solve for x
   x = 1,664.25/59.31
6. Step 6: Final answer
   x = 28.06