Finding the Fourth Proportional to 6,513.30, 8,987.67 and 3,680.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,513.30 : 8,987.67 = 3,680.82 : x
2. Step 2: Convert to fraction form
   6,513.30/8,987.67 = 3,680.82/x
3. Step 3: Cross multiply
   6,513.30x = 8,987.67 × 3,680.82
4. Step 4: Simplify right side
   6,513.30x = 33,081,995.49
5. Step 5: Solve for x
   x = 33,081,995.49/6,513.30
6. Step 6: Final answer
   x = 5,079.15