Finding the Fourth Proportional to 6,513.30, 8,987.76 and 3,860.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,513.30 : 8,987.76 = 3,860.28 : x
2. Step 2: Convert to fraction form
   6,513.30/8,987.76 = 3,860.28/x
3. Step 3: Cross multiply
   6,513.30x = 8,987.76 × 3,860.28
4. Step 4: Simplify right side
   6,513.30x = 34,695,270.17
5. Step 5: Solve for x
   x = 34,695,270.17/6,513.30
6. Step 6: Final answer
   x = 5,326.83