Finding the Fourth Proportional to 11,404.57, 17,112.77 and 8,630.41

Step by Step Solution

1. Step 1: Write the proportion equation
   11,404.57 : 17,112.77 = 8,630.41 : x
2. Step 2: Convert to fraction form
   11,404.57/17,112.77 = 8,630.41/x
3. Step 3: Cross multiply
   11,404.57x = 17,112.77 × 8,630.41
4. Step 4: Simplify right side
   11,404.57x = 147,690,221.34
5. Step 5: Solve for x
   x = 147,690,221.34/11,404.57
6. Step 6: Final answer
   x = 12,950.09