Finding the Fourth Proportional to 59.05, 88.16 and 45.55

Step by Step Solution

1. Step 1: Write the proportion equation
   59.05 : 88.16 = 45.55 : x
2. Step 2: Convert to fraction form
   59.05/88.16 = 45.55/x
3. Step 3: Cross multiply
   59.05x = 88.16 × 45.55
4. Step 4: Simplify right side
   59.05x = 4,015.69
5. Step 5: Solve for x
   x = 4,015.69/59.05
6. Step 6: Final answer
   x = 68.00