Finding the Fourth Proportional to 22,285.34, 33,405.51 and 13,971.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,285.34 : 33,405.51 = 13,971.20 : x
2. Step 2: Convert to fraction form
   22,285.34/33,405.51 = 13,971.20/x
3. Step 3: Cross multiply
   22,285.34x = 33,405.51 × 13,971.20
4. Step 4: Simplify right side
   22,285.34x = 466,715,061.31
5. Step 5: Solve for x
   x = 466,715,061.31/22,285.34
6. Step 6: Final answer
   x = 20,942.69