Finding the Fourth Proportional to 16,143.05, 22,275.33 and 9,423.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,143.05 : 22,275.33 = 9,423.81 : x
2. Step 2: Convert to fraction form
   16,143.05/22,275.33 = 9,423.81/x
3. Step 3: Cross multiply
   16,143.05x = 22,275.33 × 9,423.81
4. Step 4: Simplify right side
   16,143.05x = 209,918,477.61
5. Step 5: Solve for x
   x = 209,918,477.61/16,143.05
6. Step 6: Final answer
   x = 13,003.65