Finding the Fourth Proportional to 16,003.47, 22,082.18 and 9,628.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,003.47 : 22,082.18 = 9,628.47 : x
2. Step 2: Convert to fraction form
   16,003.47/22,082.18 = 9,628.47/x
3. Step 3: Cross multiply
   16,003.47x = 22,082.18 × 9,628.47
4. Step 4: Simplify right side
   16,003.47x = 212,617,559.52
5. Step 5: Solve for x
   x = 212,617,559.52/16,003.47
6. Step 6: Final answer
   x = 13,285.72