Finding the Fourth Proportional to 12,326.43, 17,022.90 and 7,852.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,326.43 : 17,022.90 = 7,852.20 : x
2. Step 2: Convert to fraction form
   12,326.43/17,022.90 = 7,852.20/x
3. Step 3: Cross multiply
   12,326.43x = 17,022.90 × 7,852.20
4. Step 4: Simplify right side
   12,326.43x = 133,667,215.38
5. Step 5: Solve for x
   x = 133,667,215.38/12,326.43
6. Step 6: Final answer
   x = 10,843.95