Finding the Fourth Proportional to 33.99, 46.89 and 21.69

Step by Step Solution

1. Step 1: Write the proportion equation
   33.99 : 46.89 = 21.69 : x
2. Step 2: Convert to fraction form
   33.99/46.89 = 21.69/x
3. Step 3: Cross multiply
   33.99x = 46.89 × 21.69
4. Step 4: Simplify right side
   33.99x = 1,016.81
5. Step 5: Solve for x
   x = 1,016.81/33.99
6. Step 6: Final answer
   x = 29.92