Finding the Fourth Proportional to 16,127.40, 22,256.91 and 8,958.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,127.40 : 22,256.91 = 8,958.15 : x
2. Step 2: Convert to fraction form
   16,127.40/22,256.91 = 8,958.15/x
3. Step 3: Cross multiply
   16,127.40x = 22,256.91 × 8,958.15
4. Step 4: Simplify right side
   16,127.40x = 199,380,738.32
5. Step 5: Solve for x
   x = 199,380,738.32/16,127.40
6. Step 6: Final answer
   x = 12,362.86