Finding the Fourth Proportional to 22.01, 32.82 and 18.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22.01 : 32.82 = 18.82 : x
2. Step 2: Convert to fraction form
   22.01/32.82 = 18.82/x
3. Step 3: Cross multiply
   22.01x = 32.82 × 18.82
4. Step 4: Simplify right side
   22.01x = 617.67
5. Step 5: Solve for x
   x = 617.67/22.01
6. Step 6: Final answer
   x = 28.07