Finding the Fourth Proportional to 12,016.40, 18,014.16 and 5,773.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,016.40 : 18,014.16 = 5,773.28 : x
2. Step 2: Convert to fraction form
   12,016.40/18,014.16 = 5,773.28/x
3. Step 3: Cross multiply
   12,016.40x = 18,014.16 × 5,773.28
4. Step 4: Simplify right side
   12,016.40x = 104,000,789.64
5. Step 5: Solve for x
   x = 104,000,789.64/12,016.40
6. Step 6: Final answer
   x = 8,654.90