Finding the Fourth Proportional to 11,167.50, 15,410.85 and 6,131.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,167.50 : 15,410.85 = 6,131.69 : x
2. Step 2: Convert to fraction form
   11,167.50/15,410.85 = 6,131.69/x
3. Step 3: Cross multiply
   11,167.50x = 15,410.85 × 6,131.69
4. Step 4: Simplify right side
   11,167.50x = 94,494,477.78
5. Step 5: Solve for x
   x = 94,494,477.78/11,167.50
6. Step 6: Final answer
   x = 8,461.56