Finding the Fourth Proportional to 14,227.91, 19,636.49 and 7,940.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,227.91 : 19,636.49 = 7,940.69 : x
2. Step 2: Convert to fraction form
   14,227.91/19,636.49 = 7,940.69/x
3. Step 3: Cross multiply
   14,227.91x = 19,636.49 × 7,940.69
4. Step 4: Simplify right side
   14,227.91x = 155,927,279.78
5. Step 5: Solve for x
   x = 155,927,279.78/14,227.91
6. Step 6: Final answer
   x = 10,959.25