Finding the Fourth Proportional to 13,003.36, 17,936.94 and 7,969.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,003.36 : 17,936.94 = 7,969.84 : x
2. Step 2: Convert to fraction form
   13,003.36/17,936.94 = 7,969.84/x
3. Step 3: Cross multiply
   13,003.36x = 17,936.94 × 7,969.84
4. Step 4: Simplify right side
   13,003.36x = 142,954,541.89
5. Step 5: Solve for x
   x = 142,954,541.89/13,003.36
6. Step 6: Final answer
   x = 10,993.66