Finding the Fourth Proportional to 59.18, 88.50 and 50.72

Step by Step Solution

1. Step 1: Write the proportion equation
   59.18 : 88.50 = 50.72 : x
2. Step 2: Convert to fraction form
   59.18/88.50 = 50.72/x
3. Step 3: Cross multiply
   59.18x = 88.50 × 50.72
4. Step 4: Simplify right side
   59.18x = 4,488.72
5. Step 5: Solve for x
   x = 4,488.72/59.18
6. Step 6: Final answer
   x = 75.85