Finding the Fourth Proportional to 11,906.71, 16,444.71 and 8,123.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,906.71 : 16,444.71 = 8,123.38 : x
2. Step 2: Convert to fraction form
   11,906.71/16,444.71 = 8,123.38/x
3. Step 3: Cross multiply
   11,906.71x = 16,444.71 × 8,123.38
4. Step 4: Simplify right side
   11,906.71x = 133,586,628.32
5. Step 5: Solve for x
   x = 133,586,628.32/11,906.71
6. Step 6: Final answer
   x = 11,219.44