Finding the Fourth Proportional to 16,514.28, 22,778.82 and 10,215.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,514.28 : 22,778.82 = 10,215.72 : x
2. Step 2: Convert to fraction form
   16,514.28/22,778.82 = 10,215.72/x
3. Step 3: Cross multiply
   16,514.28x = 22,778.82 × 10,215.72
4. Step 4: Simplify right side
   16,514.28x = 232,702,047.05
5. Step 5: Solve for x
   x = 232,702,047.05/16,514.28
6. Step 6: Final answer
   x = 14,090.96