Finding the Fourth Proportional to 59.22, 81.72 and 35.91

Step by Step Solution

1. Step 1: Write the proportion equation
   59.22 : 81.72 = 35.91 : x
2. Step 2: Convert to fraction form
   59.22/81.72 = 35.91/x
3. Step 3: Cross multiply
   59.22x = 81.72 × 35.91
4. Step 4: Simplify right side
   59.22x = 2,934.57
5. Step 5: Solve for x
   x = 2,934.57/59.22
6. Step 6: Final answer
   x = 49.55