Finding the Fourth Proportional to 16,320.30, 22,521.57 and 9,246.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,320.30 : 22,521.57 = 9,246.72 : x
2. Step 2: Convert to fraction form
   16,320.30/22,521.57 = 9,246.72/x
3. Step 3: Cross multiply
   16,320.30x = 22,521.57 × 9,246.72
4. Step 4: Simplify right side
   16,320.30x = 208,250,651.75
5. Step 5: Solve for x
   x = 208,250,651.75/16,320.30
6. Step 6: Final answer
   x = 12,760.22