Finding the Fourth Proportional to 6,409.76, 8,845.32 and 3,615.32

Step by Step Solution

1. Step 1: Write the proportion equation
   6,409.76 : 8,845.32 = 3,615.32 : x
2. Step 2: Convert to fraction form
   6,409.76/8,845.32 = 3,615.32/x
3. Step 3: Cross multiply
   6,409.76x = 8,845.32 × 3,615.32
4. Step 4: Simplify right side
   6,409.76x = 31,978,662.30
5. Step 5: Solve for x
   x = 31,978,662.30/6,409.76
6. Step 6: Final answer
   x = 4,989.06