Finding the Fourth Proportional to 28.55, 42.71 and 22.10

Step by Step Solution

1. Step 1: Write the proportion equation
   28.55 : 42.71 = 22.10 : x
2. Step 2: Convert to fraction form
   28.55/42.71 = 22.10/x
3. Step 3: Cross multiply
   28.55x = 42.71 × 22.10
4. Step 4: Simplify right side
   28.55x = 943.73
5. Step 5: Solve for x
   x = 943.73/28.55
6. Step 6: Final answer
   x = 33.06