Finding the Fourth Proportional to 12,622, 17,440.20 and 10,382

Step by Step Solution

1. Step 1: Write the proportion equation
   12,622 : 17,440.20 = 10,382 : x
2. Step 2: Convert to fraction form
   12,622/17,440.20 = 10,382/x
3. Step 3: Cross multiply
   12,622x = 17,440.20 × 10,382
4. Step 4: Simplify right side
   12,622x = 181,064,156.40
5. Step 5: Solve for x
   x = 181,064,156.40/12,622
6. Step 6: Final answer
   x = 14,345.12