Finding the Fourth Proportional to 6,375.76, 8,797.60 and 3,580.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,375.76 : 8,797.60 = 3,580.72 : x
2. Step 2: Convert to fraction form
   6,375.76/8,797.60 = 3,580.72/x
3. Step 3: Cross multiply
   6,375.76x = 8,797.60 × 3,580.72
4. Step 4: Simplify right side
   6,375.76x = 31,501,742.27
5. Step 5: Solve for x
   x = 31,501,742.27/6,375.76
6. Step 6: Final answer
   x = 4,940.86