Finding the Fourth Proportional to 11,669.12, 16,116.83 and 8,496.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,669.12 : 16,116.83 = 8,496.61 : x
2. Step 2: Convert to fraction form
   11,669.12/16,116.83 = 8,496.61/x
3. Step 3: Cross multiply
   11,669.12x = 16,116.83 × 8,496.61
4. Step 4: Simplify right side
   11,669.12x = 136,938,399.90
5. Step 5: Solve for x
   x = 136,938,399.90/11,669.12
6. Step 6: Final answer
   x = 11,735.11