Finding the Fourth Proportional to 22,152.42, 33,212.21 and 13,385.27

Step by Step Solution

1. Step 1: Write the proportion equation
   22,152.42 : 33,212.21 = 13,385.27 : x
2. Step 2: Convert to fraction form
   22,152.42/33,212.21 = 13,385.27/x
3. Step 3: Cross multiply
   22,152.42x = 33,212.21 × 13,385.27
4. Step 4: Simplify right side
   22,152.42x = 444,554,414.25
5. Step 5: Solve for x
   x = 444,554,414.25/22,152.42
6. Step 6: Final answer
   x = 20,067.98