Finding the Fourth Proportional to 33,144.50, 45,739.42 and 18,240.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,144.50 : 45,739.42 = 18,240.50 : x
2. Step 2: Convert to fraction form
   33,144.50/45,739.42 = 18,240.50/x
3. Step 3: Cross multiply
   33,144.50x = 45,739.42 × 18,240.50
4. Step 4: Simplify right side
   33,144.50x = 834,309,890.51
5. Step 5: Solve for x
   x = 834,309,890.51/33,144.50
6. Step 6: Final answer
   x = 25,171.90