Finding the Fourth Proportional to 22,141.89, 30,564.34 and 16,220.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,141.89 : 30,564.34 = 16,220.59 : x
2. Step 2: Convert to fraction form
   22,141.89/30,564.34 = 16,220.59/x
3. Step 3: Cross multiply
   22,141.89x = 30,564.34 × 16,220.59
4. Step 4: Simplify right side
   22,141.89x = 495,771,510.80
5. Step 5: Solve for x
   x = 495,771,510.80/22,141.89
6. Step 6: Final answer
   x = 22,390.66