Finding the Fourth Proportional to 12,013.98, 18,016.32 and 4,616.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,013.98 : 18,016.32 = 4,616.42 : x
2. Step 2: Convert to fraction form
   12,013.98/18,016.32 = 4,616.42/x
3. Step 3: Cross multiply
   12,013.98x = 18,016.32 × 4,616.42
4. Step 4: Simplify right side
   12,013.98x = 83,170,899.97
5. Step 5: Solve for x
   x = 83,170,899.97/12,013.98
6. Step 6: Final answer
   x = 6,922.84