Finding the Fourth Proportional to 7,886.80, 10,850.25 and 7,668.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,886.80 : 10,850.25 = 7,668.10 : x
2. Step 2: Convert to fraction form
   7,886.80/10,850.25 = 7,668.10/x
3. Step 3: Cross multiply
   7,886.80x = 10,850.25 × 7,668.10
4. Step 4: Simplify right side
   7,886.80x = 83,200,802.03
5. Step 5: Solve for x
   x = 83,200,802.03/7,886.80
6. Step 6: Final answer
   x = 10,549.37