Finding the Fourth Proportional to 11,167.56, 15,401.34 and 8,508.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,167.56 : 15,401.34 = 8,508.60 : x
2. Step 2: Convert to fraction form
   11,167.56/15,401.34 = 8,508.60/x
3. Step 3: Cross multiply
   11,167.56x = 15,401.34 × 8,508.60
4. Step 4: Simplify right side
   11,167.56x = 131,043,841.52
5. Step 5: Solve for x
   x = 131,043,841.52/11,167.56
6. Step 6: Final answer
   x = 11,734.33