Finding the Fourth Proportional to 8,131.47, 12,204.50 and 5,668.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.47 : 12,204.50 = 5,668.07 : x
2. Step 2: Convert to fraction form
   8,131.47/12,204.50 = 5,668.07/x
3. Step 3: Cross multiply
   8,131.47x = 12,204.50 × 5,668.07
4. Step 4: Simplify right side
   8,131.47x = 69,175,870.95
5. Step 5: Solve for x
   x = 69,175,870.95/8,131.47
6. Step 6: Final answer
   x = 8,507.18