Finding the Fourth Proportional to 6,433.35, 9,640.80 and 3,654.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,433.35 : 9,640.80 = 3,654.15 : x
2. Step 2: Convert to fraction form
   6,433.35/9,640.80 = 3,654.15/x
3. Step 3: Cross multiply
   6,433.35x = 9,640.80 × 3,654.15
4. Step 4: Simplify right side
   6,433.35x = 35,228,929.32
5. Step 5: Solve for x
   x = 35,228,929.32/6,433.35
6. Step 6: Final answer
   x = 5,475.99