Finding the Fourth Proportional to 16,113, 22,228.38 and 11,399.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,113 : 22,228.38 = 11,399.88 : x
2. Step 2: Convert to fraction form
   16,113/22,228.38 = 11,399.88/x
3. Step 3: Cross multiply
   16,113x = 22,228.38 × 11,399.88
4. Step 4: Simplify right side
   16,113x = 253,400,864.59
5. Step 5: Solve for x
   x = 253,400,864.59/16,113
6. Step 6: Final answer
   x = 15,726.49