Finding the Fourth Proportional to 16,113.28, 22,227.36 and 10,142.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,113.28 : 22,227.36 = 10,142.74 : x
2. Step 2: Convert to fraction form
   16,113.28/22,227.36 = 10,142.74/x
3. Step 3: Cross multiply
   16,113.28x = 22,227.36 × 10,142.74
4. Step 4: Simplify right side
   16,113.28x = 225,446,333.37
5. Step 5: Solve for x
   x = 225,446,333.37/16,113.28
6. Step 6: Final answer
   x = 13,991.34