Finding the Fourth Proportional to 16,535.28, 22,818.78 and 9,821.22

Step by Step Solution

1. Step 1: Write the proportion equation
   16,535.28 : 22,818.78 = 9,821.22 : x
2. Step 2: Convert to fraction form
   16,535.28/22,818.78 = 9,821.22/x
3. Step 3: Cross multiply
   16,535.28x = 22,818.78 × 9,821.22
4. Step 4: Simplify right side
   16,535.28x = 224,108,258.51
5. Step 5: Solve for x
   x = 224,108,258.51/16,535.28
6. Step 6: Final answer
   x = 13,553.34