Finding the Fourth Proportional to 11,491.46, 15,858.89 and 8,653.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,491.46 : 15,858.89 = 8,653.82 : x
2. Step 2: Convert to fraction form
   11,491.46/15,858.89 = 8,653.82/x
3. Step 3: Cross multiply
   11,491.46x = 15,858.89 × 8,653.82
4. Step 4: Simplify right side
   11,491.46x = 137,239,993.75
5. Step 5: Solve for x
   x = 137,239,993.75/11,491.46
6. Step 6: Final answer
   x = 11,942.79