Finding the Fourth Proportional to 14,399.38, 19,871.04 and 8,111.74

Step by Step Solution

1. Step 1: Write the proportion equation
   14,399.38 : 19,871.04 = 8,111.74 : x
2. Step 2: Convert to fraction form
   14,399.38/19,871.04 = 8,111.74/x
3. Step 3: Cross multiply
   14,399.38x = 19,871.04 × 8,111.74
4. Step 4: Simplify right side
   14,399.38x = 161,188,710.01
5. Step 5: Solve for x
   x = 161,188,710.01/14,399.38
6. Step 6: Final answer
   x = 11,194.14