Finding the Fourth Proportional to 7,162.72, 9,884.10 and 4,179.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,162.72 : 9,884.10 = 4,179.40 : x
2. Step 2: Convert to fraction form
   7,162.72/9,884.10 = 4,179.40/x
3. Step 3: Cross multiply
   7,162.72x = 9,884.10 × 4,179.40
4. Step 4: Simplify right side
   7,162.72x = 41,309,607.54
5. Step 5: Solve for x
   x = 41,309,607.54/7,162.72
6. Step 6: Final answer
   x = 5,767.31