Finding the Fourth Proportional to 23,945.55, 33,043.56 and 13,190.07

Step by Step Solution

1. Step 1: Write the proportion equation
   23,945.55 : 33,043.56 = 13,190.07 : x
2. Step 2: Convert to fraction form
   23,945.55/33,043.56 = 13,190.07/x
3. Step 3: Cross multiply
   23,945.55x = 33,043.56 × 13,190.07
4. Step 4: Simplify right side
   23,945.55x = 435,846,638.28
5. Step 5: Solve for x
   x = 435,846,638.28/23,945.55
6. Step 6: Final answer
   x = 18,201.58