Finding the Fourth Proportional to 19,791.82, 29,617.61 and 17,456.39

Step by Step Solution

1. Step 1: Write the proportion equation
   19,791.82 : 29,617.61 = 17,456.39 : x
2. Step 2: Convert to fraction form
   19,791.82/29,617.61 = 17,456.39/x
3. Step 3: Cross multiply
   19,791.82x = 29,617.61 × 17,456.39
4. Step 4: Simplify right side
   19,791.82x = 517,016,551.03
5. Step 5: Solve for x
   x = 517,016,551.03/19,791.82
6. Step 6: Final answer
   x = 26,122.74