Finding the Fourth Proportional to 13,911.72, 19,204.82 and 7,942.23

Step by Step Solution

1. Step 1: Write the proportion equation
   13,911.72 : 19,204.82 = 7,942.23 : x
2. Step 2: Convert to fraction form
   13,911.72/19,204.82 = 7,942.23/x
3. Step 3: Cross multiply
   13,911.72x = 19,204.82 × 7,942.23
4. Step 4: Simplify right side
   13,911.72x = 152,529,132.30
5. Step 5: Solve for x
   x = 152,529,132.30/13,911.72
6. Step 6: Final answer
   x = 10,964.08