Finding the Fourth Proportional to 33,144, 45,738.73 and 18,240

Step by Step Solution

1. Step 1: Write the proportion equation
   33,144 : 45,738.73 = 18,240 : x
2. Step 2: Convert to fraction form
   33,144/45,738.73 = 18,240/x
3. Step 3: Cross multiply
   33,144x = 45,738.73 × 18,240
4. Step 4: Simplify right side
   33,144x = 834,274,389.60
5. Step 5: Solve for x
   x = 834,274,389.60/33,144
6. Step 6: Final answer
   x = 25,171.20