Finding the Fourth Proportional to 22,758.72, 34,139.28 and 8,716.14

Step by Step Solution

1. Step 1: Write the proportion equation
   22,758.72 : 34,139.28 = 8,716.14 : x
2. Step 2: Convert to fraction form
   22,758.72/34,139.28 = 8,716.14/x
3. Step 3: Cross multiply
   22,758.72x = 34,139.28 × 8,716.14
4. Step 4: Simplify right side
   22,758.72x = 297,562,743.98
5. Step 5: Solve for x
   x = 297,562,743.98/22,758.72
6. Step 6: Final answer
   x = 13,074.67