Finding the Fourth Proportional to 12,342.72, 18,502.54 and 6,016.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,342.72 : 18,502.54 = 6,016.20 : x
2. Step 2: Convert to fraction form
   12,342.72/18,502.54 = 6,016.20/x
3. Step 3: Cross multiply
   12,342.72x = 18,502.54 × 6,016.20
4. Step 4: Simplify right side
   12,342.72x = 111,314,981.15
5. Step 5: Solve for x
   x = 111,314,981.15/12,342.72
6. Step 6: Final answer
   x = 9,018.68