Finding the Fourth Proportional to 16,632.72, 22,953.24 and 9,180.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,632.72 : 22,953.24 = 9,180.72 : x
2. Step 2: Convert to fraction form
   16,632.72/22,953.24 = 9,180.72/x
3. Step 3: Cross multiply
   16,632.72x = 22,953.24 × 9,180.72
4. Step 4: Simplify right side
   16,632.72x = 210,727,269.53
5. Step 5: Solve for x
   x = 210,727,269.53/16,632.72
6. Step 6: Final answer
   x = 12,669.44