Finding the Fourth Proportional to 11,167.45, 15,411.15 and 6,131.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,167.45 : 15,411.15 = 6,131.89 : x
2. Step 2: Convert to fraction form
   11,167.45/15,411.15 = 6,131.89/x
3. Step 3: Cross multiply
   11,167.45x = 15,411.15 × 6,131.89
4. Step 4: Simplify right side
   11,167.45x = 94,499,476.57
5. Step 5: Solve for x
   x = 94,499,476.57/11,167.45
6. Step 6: Final answer
   x = 8,462.05