Finding the Fourth Proportional to 7,016.72, 9,678.74 and 4,182.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,016.72 : 9,678.74 = 4,182.18 : x
2. Step 2: Convert to fraction form
   7,016.72/9,678.74 = 4,182.18/x
3. Step 3: Cross multiply
   7,016.72x = 9,678.74 × 4,182.18
4. Step 4: Simplify right side
   7,016.72x = 40,478,211.94
5. Step 5: Solve for x
   x = 40,478,211.94/7,016.72
6. Step 6: Final answer
   x = 5,768.83