Finding the Fourth Proportional to 6,404.64, 9,612.72 and 3,485.04

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404.64 : 9,612.72 = 3,485.04 : x
2. Step 2: Convert to fraction form
   6,404.64/9,612.72 = 3,485.04/x
3. Step 3: Cross multiply
   6,404.64x = 9,612.72 × 3,485.04
4. Step 4: Simplify right side
   6,404.64x = 33,500,713.71
5. Step 5: Solve for x
   x = 33,500,713.71/6,404.64
6. Step 6: Final answer
   x = 5,230.69