Finding the Fourth Proportional to 59.05, 88.50 and 28.56

Step by Step Solution

1. Step 1: Write the proportion equation
   59.05 : 88.50 = 28.56 : x
2. Step 2: Convert to fraction form
   59.05/88.50 = 28.56/x
3. Step 3: Cross multiply
   59.05x = 88.50 × 28.56
4. Step 4: Simplify right side
   59.05x = 2,527.45
5. Step 5: Solve for x
   x = 2,527.45/59.05
6. Step 6: Final answer
   x = 42.80