Finding the Fourth Proportional to 19,786.73, 27,318.42 and 17,658.59

Step by Step Solution

1. Step 1: Write the proportion equation
   19,786.73 : 27,318.42 = 17,658.59 : x
2. Step 2: Convert to fraction form
   19,786.73/27,318.42 = 17,658.59/x
3. Step 3: Cross multiply
   19,786.73x = 27,318.42 × 17,658.59
4. Step 4: Simplify right side
   19,786.73x = 482,404,641.64
5. Step 5: Solve for x
   x = 482,404,641.64/19,786.73
6. Step 6: Final answer
   x = 24,380.22