Finding the Fourth Proportional to 59.42, 88.45 and 59.11

Step by Step Solution

1. Step 1: Write the proportion equation
   59.42 : 88.45 = 59.11 : x
2. Step 2: Convert to fraction form
   59.42/88.45 = 59.11/x
3. Step 3: Cross multiply
   59.42x = 88.45 × 59.11
4. Step 4: Simplify right side
   59.42x = 5,228.28
5. Step 5: Solve for x
   x = 5,228.28/59.42
6. Step 6: Final answer
   x = 87.99