Finding the Fourth Proportional to 16,456.60, 22,700.88 and 10,086.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,456.60 : 22,700.88 = 10,086.28 : x
2. Step 2: Convert to fraction form
   16,456.60/22,700.88 = 10,086.28/x
3. Step 3: Cross multiply
   16,456.60x = 22,700.88 × 10,086.28
4. Step 4: Simplify right side
   16,456.60x = 228,967,431.93
5. Step 5: Solve for x
   x = 228,967,431.93/16,456.60
6. Step 6: Final answer
   x = 13,913.41