Finding the Fourth Proportional to 16,340.64, 22,549.26 and 9,267.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,340.64 : 22,549.26 = 9,267.72 : x
2. Step 2: Convert to fraction form
   16,340.64/22,549.26 = 9,267.72/x
3. Step 3: Cross multiply
   16,340.64x = 22,549.26 × 9,267.72
4. Step 4: Simplify right side
   16,340.64x = 208,980,227.89
5. Step 5: Solve for x
   x = 208,980,227.89/16,340.64
6. Step 6: Final answer
   x = 12,788.99