Finding the Fourth Proportional to 11,945.18, 16,446.69 and 10,838.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,945.18 : 16,446.69 = 10,838.01 : x
2. Step 2: Convert to fraction form
   11,945.18/16,446.69 = 10,838.01/x
3. Step 3: Cross multiply
   11,945.18x = 16,446.69 × 10,838.01
4. Step 4: Simplify right side
   11,945.18x = 178,249,390.69
5. Step 5: Solve for x
   x = 178,249,390.69/11,945.18
6. Step 6: Final answer
   x = 14,922.29