Finding the Fourth Proportional to 6,315.82, 8,719.56 and 5,615.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,315.82 : 8,719.56 = 5,615.25 : x
2. Step 2: Convert to fraction form
   6,315.82/8,719.56 = 5,615.25/x
3. Step 3: Cross multiply
   6,315.82x = 8,719.56 × 5,615.25
4. Step 4: Simplify right side
   6,315.82x = 48,962,481.21
5. Step 5: Solve for x
   x = 48,962,481.21/6,315.82
6. Step 6: Final answer
   x = 7,752.36