Finding the Fourth Proportional to 11,909.37, 16,423.25 and 10,967.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,909.37 : 16,423.25 = 10,967.61 : x
2. Step 2: Convert to fraction form
   11,909.37/16,423.25 = 10,967.61/x
3. Step 3: Cross multiply
   11,909.37x = 16,423.25 × 10,967.61
4. Step 4: Simplify right side
   11,909.37x = 180,123,746.09
5. Step 5: Solve for x
   x = 180,123,746.09/11,909.37
6. Step 6: Final answer
   x = 15,124.54