Finding the Fourth Proportional to 6,300.24, 8,689.76 and 3,911.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,300.24 : 8,689.76 = 3,911.56 : x
2. Step 2: Convert to fraction form
   6,300.24/8,689.76 = 3,911.56/x
3. Step 3: Cross multiply
   6,300.24x = 8,689.76 × 3,911.56
4. Step 4: Simplify right side
   6,300.24x = 33,990,517.63
5. Step 5: Solve for x
   x = 33,990,517.63/6,300.24
6. Step 6: Final answer
   x = 5,395.11