Finding the Fourth Proportional to 59.05, 88.06 and 57.63

Step by Step Solution

1. Step 1: Write the proportion equation
   59.05 : 88.06 = 57.63 : x
2. Step 2: Convert to fraction form
   59.05/88.06 = 57.63/x
3. Step 3: Cross multiply
   59.05x = 88.06 × 57.63
4. Step 4: Simplify right side
   59.05x = 5,074.90
5. Step 5: Solve for x
   x = 5,074.90/59.05
6. Step 6: Final answer
   x = 85.94