Finding the Fourth Proportional to 8,488.43, 12,716.16 and 4,208.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,488.43 : 12,716.16 = 4,208.06 : x
2. Step 2: Convert to fraction form
   8,488.43/12,716.16 = 4,208.06/x
3. Step 3: Cross multiply
   8,488.43x = 12,716.16 × 4,208.06
4. Step 4: Simplify right side
   8,488.43x = 53,510,300.67
5. Step 5: Solve for x
   x = 53,510,300.67/8,488.43
6. Step 6: Final answer
   x = 6,303.91