Finding the Fourth Proportional to 11,722.82, 16,178.00 and 7,243.11

Step by Step Solution

1. Step 1: Write the proportion equation
   11,722.82 : 16,178.00 = 7,243.11 : x
2. Step 2: Convert to fraction form
   11,722.82/16,178.00 = 7,243.11/x
3. Step 3: Cross multiply
   11,722.82x = 16,178.00 × 7,243.11
4. Step 4: Simplify right side
   11,722.82x = 117,178,997.36
5. Step 5: Solve for x
   x = 117,178,997.36/11,722.82
6. Step 6: Final answer
   x = 9,995.81