Finding the Fourth Proportional to 16,201, 22,367.12 and 10,621.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,201 : 22,367.12 = 10,621.72 : x
2. Step 2: Convert to fraction form
   16,201/22,367.12 = 10,621.72/x
3. Step 3: Cross multiply
   16,201x = 22,367.12 × 10,621.72
4. Step 4: Simplify right side
   16,201x = 237,577,285.85
5. Step 5: Solve for x
   x = 237,577,285.85/16,201
6. Step 6: Final answer
   x = 14,664.36