Finding the Fourth Proportional to 6,404.16, 8,837.76 and 3,609.64

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404.16 : 8,837.76 = 3,609.64 : x
2. Step 2: Convert to fraction form
   6,404.16/8,837.76 = 3,609.64/x
3. Step 3: Cross multiply
   6,404.16x = 8,837.76 × 3,609.64
4. Step 4: Simplify right side
   6,404.16x = 31,901,132.01
5. Step 5: Solve for x
   x = 31,901,132.01/6,404.16
6. Step 6: Final answer
   x = 4,981.31