Finding the Fourth Proportional to 11,401.07, 17,107.52 and 8,626.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,401.07 : 17,107.52 = 8,626.91 : x
2. Step 2: Convert to fraction form
   11,401.07/17,107.52 = 8,626.91/x
3. Step 3: Cross multiply
   11,401.07x = 17,107.52 × 8,626.91
4. Step 4: Simplify right side
   11,401.07x = 147,584,906.69
5. Step 5: Solve for x
   x = 147,584,906.69/11,401.07
6. Step 6: Final answer
   x = 12,944.84