Finding the Fourth Proportional to 12,016.38, 18,016.08 and 4,614.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,016.38 : 18,016.08 = 4,614.60 : x
2. Step 2: Convert to fraction form
   12,016.38/18,016.08 = 4,614.60/x
3. Step 3: Cross multiply
   12,016.38x = 18,016.08 × 4,614.60
4. Step 4: Simplify right side
   12,016.38x = 83,137,002.77
5. Step 5: Solve for x
   x = 83,137,002.77/12,016.38
6. Step 6: Final answer
   x = 6,918.64