Finding the Fourth Proportional to 6,275.15, 9,409.69 and 3,643.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,275.15 : 9,409.69 = 3,643.31 : x
2. Step 2: Convert to fraction form
   6,275.15/9,409.69 = 3,643.31/x
3. Step 3: Cross multiply
   6,275.15x = 9,409.69 × 3,643.31
4. Step 4: Simplify right side
   6,275.15x = 34,282,421.65
5. Step 5: Solve for x
   x = 34,282,421.65/6,275.15
6. Step 6: Final answer
   x = 5,463.21