Finding the Fourth Proportional to 59.29, 88.69 and 54.18

Step by Step Solution

1. Step 1: Write the proportion equation
   59.29 : 88.69 = 54.18 : x
2. Step 2: Convert to fraction form
   59.29/88.69 = 54.18/x
3. Step 3: Cross multiply
   59.29x = 88.69 × 54.18
4. Step 4: Simplify right side
   59.29x = 4,805.22
5. Step 5: Solve for x
   x = 4,805.22/59.29
6. Step 6: Final answer
   x = 81.05