Finding the Fourth Proportional to 6,315.61, 8,715.60 and 3,483.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,315.61 : 8,715.60 = 3,483.09 : x
2. Step 2: Convert to fraction form
   6,315.61/8,715.60 = 3,483.09/x
3. Step 3: Cross multiply
   6,315.61x = 8,715.60 × 3,483.09
4. Step 4: Simplify right side
   6,315.61x = 30,357,243.72
5. Step 5: Solve for x
   x = 30,357,243.72/6,315.61
6. Step 6: Final answer
   x = 4,806.70