Finding the Fourth Proportional to 13,912.14, 19,198.46 and 9,940.00

Step by Step Solution

1. Step 1: Write the proportion equation
   13,912.14 : 19,198.46 = 9,940.00 : x
2. Step 2: Convert to fraction form
   13,912.14/19,198.46 = 9,940.00/x
3. Step 3: Cross multiply
   13,912.14x = 19,198.46 × 9,940.00
4. Step 4: Simplify right side
   13,912.14x = 190,832,669.25
5. Step 5: Solve for x
   x = 190,832,669.25/13,912.14
6. Step 6: Final answer
   x = 13,716.99