Finding the Fourth Proportional to 23,945.30, 33,043.21 and 13,189.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,945.30 : 33,043.21 = 13,189.82 : x
2. Step 2: Convert to fraction form
   23,945.30/33,043.21 = 13,189.82/x
3. Step 3: Cross multiply
   23,945.30x = 33,043.21 × 13,189.82
4. Step 4: Simplify right side
   23,945.30x = 435,833,826.91
5. Step 5: Solve for x
   x = 435,833,826.91/23,945.30
6. Step 6: Final answer
   x = 18,201.23