Finding the Fourth Proportional to 59.12, 88.61 and 28.68

Step by Step Solution

1. Step 1: Write the proportion equation
   59.12 : 88.61 = 28.68 : x
2. Step 2: Convert to fraction form
   59.12/88.61 = 28.68/x
3. Step 3: Cross multiply
   59.12x = 88.61 × 28.68
4. Step 4: Simplify right side
   59.12x = 2,540.86
5. Step 5: Solve for x
   x = 2,540.86/59.12
6. Step 6: Final answer
   x = 42.98