Finding the Fourth Proportional to 11,076.71, 16,550.27 and 10,689.26

Step by Step Solution

1. Step 1: Write the proportion equation
   11,076.71 : 16,550.27 = 10,689.26 : x
2. Step 2: Convert to fraction form
   11,076.71/16,550.27 = 10,689.26/x
3. Step 3: Cross multiply
   11,076.71x = 16,550.27 × 10,689.26
4. Step 4: Simplify right side
   11,076.71x = 176,910,002.90
5. Step 5: Solve for x
   x = 176,910,002.90/11,076.71
6. Step 6: Final answer
   x = 15,971.36