Finding the Fourth Proportional to 12,016.53, 17,989.72 and 8,018.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,016.53 : 17,989.72 = 8,018.37 : x
2. Step 2: Convert to fraction form
   12,016.53/17,989.72 = 8,018.37/x
3. Step 3: Cross multiply
   12,016.53x = 17,989.72 × 8,018.37
4. Step 4: Simplify right side
   12,016.53x = 144,248,231.16
5. Step 5: Solve for x
   x = 144,248,231.16/12,016.53
6. Step 6: Final answer
   x = 12,004.15