Finding the Fourth Proportional to 19,892.05, 29,843.91 and 8,039.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,892.05 : 29,843.91 = 8,039.69 : x
2. Step 2: Convert to fraction form
   19,892.05/29,843.91 = 8,039.69/x
3. Step 3: Cross multiply
   19,892.05x = 29,843.91 × 8,039.69
4. Step 4: Simplify right side
   19,892.05x = 239,935,747.48
5. Step 5: Solve for x
   x = 239,935,747.48/19,892.05
6. Step 6: Final answer
   x = 12,061.89