Finding the Fourth Proportional to 19,142.46, 28,709.01 and 8,049.29

Step by Step Solution

1. Step 1: Write the proportion equation
   19,142.46 : 28,709.01 = 8,049.29 : x
2. Step 2: Convert to fraction form
   19,142.46/28,709.01 = 8,049.29/x
3. Step 3: Cross multiply
   19,142.46x = 28,709.01 × 8,049.29
4. Step 4: Simplify right side
   19,142.46x = 231,087,003.56
5. Step 5: Solve for x
   x = 231,087,003.56/19,142.46
6. Step 6: Final answer
   x = 12,071.96