Finding the Fourth Proportional to 11,836.04, 16,402.78 and 11,669

Step by Step Solution

1. Step 1: Write the proportion equation
   11,836.04 : 16,402.78 = 11,669 : x
2. Step 2: Convert to fraction form
   11,836.04/16,402.78 = 11,669/x
3. Step 3: Cross multiply
   11,836.04x = 16,402.78 × 11,669
4. Step 4: Simplify right side
   11,836.04x = 191,404,039.82
5. Step 5: Solve for x
   x = 191,404,039.82/11,836.04
6. Step 6: Final answer
   x = 16,171.29