Finding the Fourth Proportional to 19,691.10, 27,141.89 and 17,132.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,691.10 : 27,141.89 = 17,132.31 : x
2. Step 2: Convert to fraction form
   19,691.10/27,141.89 = 17,132.31/x
3. Step 3: Cross multiply
   19,691.10x = 27,141.89 × 17,132.31
4. Step 4: Simplify right side
   19,691.10x = 465,003,187.80
5. Step 5: Solve for x
   x = 465,003,187.80/19,691.10
6. Step 6: Final answer
   x = 23,614.89