Finding the Fourth Proportional to 6,120.81, 8,446.73 and 3,326.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,120.81 : 8,446.73 = 3,326.31 : x
2. Step 2: Convert to fraction form
   6,120.81/8,446.73 = 3,326.31/x
3. Step 3: Cross multiply
   6,120.81x = 8,446.73 × 3,326.31
4. Step 4: Simplify right side
   6,120.81x = 28,096,425.83
5. Step 5: Solve for x
   x = 28,096,425.83/6,120.81
6. Step 6: Final answer
   x = 4,590.31