Finding the Fourth Proportional to 6,504.00, 8,976.32 and 3,987.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,504.00 : 8,976.32 = 3,987.80 : x
2. Step 2: Convert to fraction form
   6,504.00/8,976.32 = 3,987.80/x
3. Step 3: Cross multiply
   6,504.00x = 8,976.32 × 3,987.80
4. Step 4: Simplify right side
   6,504.00x = 35,795,752.69
5. Step 5: Solve for x
   x = 35,795,752.69/6,504.00
6. Step 6: Final answer
   x = 5,503.66