Finding the Fourth Proportional to 16,222.46, 22,387.32 and 9,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,222.46 : 22,387.32 = 9,147.50 : x
2. Step 2: Convert to fraction form
   16,222.46/22,387.32 = 9,147.50/x
3. Step 3: Cross multiply
   16,222.46x = 22,387.32 × 9,147.50
4. Step 4: Simplify right side
   16,222.46x = 204,788,009.70
5. Step 5: Solve for x
   x = 204,788,009.70/16,222.46
6. Step 6: Final answer
   x = 12,623.73