Finding the Fourth Proportional to 6,436.59, 9,651.79 and 3,145.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,436.59 : 9,651.79 = 3,145.83 : x
2. Step 2: Convert to fraction form
   6,436.59/9,651.79 = 3,145.83/x
3. Step 3: Cross multiply
   6,436.59x = 9,651.79 × 3,145.83
4. Step 4: Simplify right side
   6,436.59x = 30,362,890.54
5. Step 5: Solve for x
   x = 30,362,890.54/6,436.59
6. Step 6: Final answer
   x = 4,717.23