Finding the Fourth Proportional to 11,896.91, 16,417.69 and 6,591.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,896.91 : 16,417.69 = 6,591.72 : x
2. Step 2: Convert to fraction form
   11,896.91/16,417.69 = 6,591.72/x
3. Step 3: Cross multiply
   11,896.91x = 16,417.69 × 6,591.72
4. Step 4: Simplify right side
   11,896.91x = 108,220,799.05
5. Step 5: Solve for x
   x = 108,220,799.05/11,896.91
6. Step 6: Final answer
   x = 9,096.55