Finding the Fourth Proportional to 6,436.35, 9,653.31 and 3,147.39

Step by Step Solution

1. Step 1: Write the proportion equation
   6,436.35 : 9,653.31 = 3,147.39 : x
2. Step 2: Convert to fraction form
   6,436.35/9,653.31 = 3,147.39/x
3. Step 3: Cross multiply
   6,436.35x = 9,653.31 × 3,147.39
4. Step 4: Simplify right side
   6,436.35x = 30,382,731.36
5. Step 5: Solve for x
   x = 30,382,731.36/6,436.35
6. Step 6: Final answer
   x = 4,720.49