Finding the Fourth Proportional to 16,524.72, 22,802.76 and 9,072.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,524.72 : 22,802.76 = 9,072.72 : x
2. Step 2: Convert to fraction form
   16,524.72/22,802.76 = 9,072.72/x
3. Step 3: Cross multiply
   16,524.72x = 22,802.76 × 9,072.72
4. Step 4: Simplify right side
   16,524.72x = 206,883,056.71
5. Step 5: Solve for x
   x = 206,883,056.71/16,524.72
6. Step 6: Final answer
   x = 12,519.61