Finding the Fourth Proportional to 16,113.69, 22,231.31 and 10,143.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,113.69 : 22,231.31 = 10,143.18 : x
2. Step 2: Convert to fraction form
   16,113.69/22,231.31 = 10,143.18/x
3. Step 3: Cross multiply
   16,113.69x = 22,231.31 × 10,143.18
4. Step 4: Simplify right side
   16,113.69x = 225,496,128.25
5. Step 5: Solve for x
   x = 225,496,128.25/16,113.69
6. Step 6: Final answer
   x = 13,994.07