Finding the Fourth Proportional to 15,057.83, 20,789.56 and 9,682.69

Step by Step Solution

1. Step 1: Write the proportion equation
   15,057.83 : 20,789.56 = 9,682.69 : x
2. Step 2: Convert to fraction form
   15,057.83/20,789.56 = 9,682.69/x
3. Step 3: Cross multiply
   15,057.83x = 20,789.56 × 9,682.69
4. Step 4: Simplify right side
   15,057.83x = 201,298,864.72
5. Step 5: Solve for x
   x = 201,298,864.72/15,057.83
6. Step 6: Final answer
   x = 13,368.38