Finding the Fourth Proportional to 6,218.72, 9,327.68 and 3,446.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,218.72 : 9,327.68 = 3,446.72 : x
2. Step 2: Convert to fraction form
   6,218.72/9,327.68 = 3,446.72/x
3. Step 3: Cross multiply
   6,218.72x = 9,327.68 × 3,446.72
4. Step 4: Simplify right side
   6,218.72x = 32,149,901.21
5. Step 5: Solve for x
   x = 32,149,901.21/6,218.72
6. Step 6: Final answer
   x = 5,169.86