Finding the Fourth Proportional to 14,034.69, 19,369.98 and 8,731.20

Step by Step Solution

1. Step 1: Write the proportion equation
   14,034.69 : 19,369.98 = 8,731.20 : x
2. Step 2: Convert to fraction form
   14,034.69/19,369.98 = 8,731.20/x
3. Step 3: Cross multiply
   14,034.69x = 19,369.98 × 8,731.20
4. Step 4: Simplify right side
   14,034.69x = 169,123,169.38
5. Step 5: Solve for x
   x = 169,123,169.38/14,034.69
6. Step 6: Final answer
   x = 12,050.37