Finding the Fourth Proportional to 16,190.32, 22,328.72 and 11,162.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,190.32 : 22,328.72 = 11,162.72 : x
2. Step 2: Convert to fraction form
   16,190.32/22,328.72 = 11,162.72/x
3. Step 3: Cross multiply
   16,190.32x = 22,328.72 × 11,162.72
4. Step 4: Simplify right side
   16,190.32x = 249,249,249.32
5. Step 5: Solve for x
   x = 249,249,249.32/16,190.32
6. Step 6: Final answer
   x = 15,394.96