Finding the Fourth Proportional to 16,940.14, 23,399.69 and 13,009.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,940.14 : 23,399.69 = 13,009.82 : x
2. Step 2: Convert to fraction form
   16,940.14/23,399.69 = 13,009.82/x
3. Step 3: Cross multiply
   16,940.14x = 23,399.69 × 13,009.82
4. Step 4: Simplify right side
   16,940.14x = 304,425,572.91
5. Step 5: Solve for x
   x = 304,425,572.91/16,940.14
6. Step 6: Final answer
   x = 17,970.67