Finding the Fourth Proportional to 11,167.18, 15,410.90 and 6,131.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,167.18 : 15,410.90 = 6,131.61 : x
2. Step 2: Convert to fraction form
   11,167.18/15,410.90 = 6,131.61/x
3. Step 3: Cross multiply
   11,167.18x = 15,410.90 × 6,131.61
4. Step 4: Simplify right side
   11,167.18x = 94,493,597.89
5. Step 5: Solve for x
   x = 94,493,597.89/11,167.18
6. Step 6: Final answer
   x = 8,461.73