Finding the Fourth Proportional to 11,171.82, 16,760.46 and 7,891.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,171.82 : 16,760.46 = 7,891.32 : x
2. Step 2: Convert to fraction form
   11,171.82/16,760.46 = 7,891.32/x
3. Step 3: Cross multiply
   11,171.82x = 16,760.46 × 7,891.32
4. Step 4: Simplify right side
   11,171.82x = 132,262,153.21
5. Step 5: Solve for x
   x = 132,262,153.21/11,171.82
6. Step 6: Final answer
   x = 11,838.91