Finding the Fourth Proportional to 19,645.28, 27,042.01 and 17,123

Step by Step Solution

1. Step 1: Write the proportion equation
   19,645.28 : 27,042.01 = 17,123 : x
2. Step 2: Convert to fraction form
   19,645.28/27,042.01 = 17,123/x
3. Step 3: Cross multiply
   19,645.28x = 27,042.01 × 17,123
4. Step 4: Simplify right side
   19,645.28x = 463,040,337.23
5. Step 5: Solve for x
   x = 463,040,337.23/19,645.28
6. Step 6: Final answer
   x = 23,570.06