Finding the Fourth Proportional to 16,424.18, 22,665.53 and 9,351.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,424.18 : 22,665.53 = 9,351.05 : x
2. Step 2: Convert to fraction form
   16,424.18/22,665.53 = 9,351.05/x
3. Step 3: Cross multiply
   16,424.18x = 22,665.53 × 9,351.05
4. Step 4: Simplify right side
   16,424.18x = 211,946,344.22
5. Step 5: Solve for x
   x = 211,946,344.22/16,424.18
6. Step 6: Final answer
   x = 12,904.54