Finding the Fourth Proportional to 19,189.38, 28,789.89 and 9,836.03

Step by Step Solution

1. Step 1: Write the proportion equation
   19,189.38 : 28,789.89 = 9,836.03 : x
2. Step 2: Convert to fraction form
   19,189.38/28,789.89 = 9,836.03/x
3. Step 3: Cross multiply
   19,189.38x = 28,789.89 × 9,836.03
4. Step 4: Simplify right side
   19,189.38x = 283,178,293.71
5. Step 5: Solve for x
   x = 283,178,293.71/19,189.38
6. Step 6: Final answer
   x = 14,757.03