Finding the Fourth Proportional to 16,105.45, 22,214.27 and 15,563.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,105.45 : 22,214.27 = 15,563.56 : x
2. Step 2: Convert to fraction form
   16,105.45/22,214.27 = 15,563.56/x
3. Step 3: Cross multiply
   16,105.45x = 22,214.27 × 15,563.56
4. Step 4: Simplify right side
   16,105.45x = 345,733,124.00
5. Step 5: Solve for x
   x = 345,733,124.00/16,105.45
6. Step 6: Final answer
   x = 21,466.84