Finding the Fourth Proportional to 8,868.76, 13,279.68 and 5,354.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,868.76 : 13,279.68 = 5,354.08 : x
2. Step 2: Convert to fraction form
   8,868.76/13,279.68 = 5,354.08/x
3. Step 3: Cross multiply
   8,868.76x = 13,279.68 × 5,354.08
4. Step 4: Simplify right side
   8,868.76x = 71,100,469.09
5. Step 5: Solve for x
   x = 71,100,469.09/8,868.76
6. Step 6: Final answer
   x = 8,016.96