Finding the Fourth Proportional to 6,317.98, 8,718.50 and 3,485.51

Step by Step Solution

1. Step 1: Write the proportion equation
   6,317.98 : 8,718.50 = 3,485.51 : x
2. Step 2: Convert to fraction form
   6,317.98/8,718.50 = 3,485.51/x
3. Step 3: Cross multiply
   6,317.98x = 8,718.50 × 3,485.51
4. Step 4: Simplify right side
   6,317.98x = 30,388,397.14
5. Step 5: Solve for x
   x = 30,388,397.14/6,317.98
6. Step 6: Final answer
   x = 4,809.83