Finding the Fourth Proportional to 11,910.14, 16,426.51 and 7,661.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,910.14 : 16,426.51 = 7,661.69 : x
2. Step 2: Convert to fraction form
   11,910.14/16,426.51 = 7,661.69/x
3. Step 3: Cross multiply
   11,910.14x = 16,426.51 × 7,661.69
4. Step 4: Simplify right side
   11,910.14x = 125,854,827.40
5. Step 5: Solve for x
   x = 125,854,827.40/11,910.14
6. Step 6: Final answer
   x = 10,567.03