Finding the Fourth Proportional to 16,426.16, 22,665.48 and 9,352.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,426.16 : 22,665.48 = 9,352.72 : x
2. Step 2: Convert to fraction form
   16,426.16/22,665.48 = 9,352.72/x
3. Step 3: Cross multiply
   16,426.16x = 22,665.48 × 9,352.72
4. Step 4: Simplify right side
   16,426.16x = 211,983,888.11
5. Step 5: Solve for x
   x = 211,983,888.11/16,426.16
6. Step 6: Final answer
   x = 12,905.26