Finding the Fourth Proportional to 59.17, 88.71 and 28.72

Step by Step Solution

1. Step 1: Write the proportion equation
   59.17 : 88.71 = 28.72 : x
2. Step 2: Convert to fraction form
   59.17/88.71 = 28.72/x
3. Step 3: Cross multiply
   59.17x = 88.71 × 28.72
4. Step 4: Simplify right side
   59.17x = 2,547.75
5. Step 5: Solve for x
   x = 2,547.75/59.17
6. Step 6: Final answer
   x = 43.06