Finding the Fourth Proportional to 109.76, 151.61 and 82.22

Step by Step Solution

1. Step 1: Write the proportion equation
   109.76 : 151.61 = 82.22 : x
2. Step 2: Convert to fraction form
   109.76/151.61 = 82.22/x
3. Step 3: Cross multiply
   109.76x = 151.61 × 82.22
4. Step 4: Simplify right side
   109.76x = 12,464.21
5. Step 5: Solve for x
   x = 12,464.21/109.76
6. Step 6: Final answer
   x = 113.56