Finding the Fourth Proportional to 12,665.34, 17,477.82 and 6,922.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,665.34 : 17,477.82 = 6,922.80 : x
2. Step 2: Convert to fraction form
   12,665.34/17,477.82 = 6,922.80/x
3. Step 3: Cross multiply
   12,665.34x = 17,477.82 × 6,922.80
4. Step 4: Simplify right side
   12,665.34x = 120,995,452.30
5. Step 5: Solve for x
   x = 120,995,452.30/12,665.34
6. Step 6: Final answer
   x = 9,553.27