Finding the Fourth Proportional to 6,327.15, 9,489.83 and 3,980.00

Step by Step Solution

1. Step 1: Write the proportion equation
   6,327.15 : 9,489.83 = 3,980.00 : x
2. Step 2: Convert to fraction form
   6,327.15/9,489.83 = 3,980.00/x
3. Step 3: Cross multiply
   6,327.15x = 9,489.83 × 3,980.00
4. Step 4: Simplify right side
   6,327.15x = 37,769,456.05
5. Step 5: Solve for x
   x = 37,769,456.05/6,327.15
6. Step 6: Final answer
   x = 5,969.43