Finding the Fourth Proportional to 11,640.22, 17,489.52 and 10,940.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,640.22 : 17,489.52 = 10,940.38 : x
2. Step 2: Convert to fraction form
   11,640.22/17,489.52 = 10,940.38/x
3. Step 3: Cross multiply
   11,640.22x = 17,489.52 × 10,940.38
4. Step 4: Simplify right side
   11,640.22x = 191,341,994.82
5. Step 5: Solve for x
   x = 191,341,994.82/11,640.22
6. Step 6: Final answer
   x = 16,438.01