Finding the Fourth Proportional to 33,225.72, 45,851.34 and 18,321.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,225.72 : 45,851.34 = 18,321.72 : x
2. Step 2: Convert to fraction form
   33,225.72/45,851.34 = 18,321.72/x
3. Step 3: Cross multiply
   33,225.72x = 45,851.34 × 18,321.72
4. Step 4: Simplify right side
   33,225.72x = 840,075,413.10
5. Step 5: Solve for x
   x = 840,075,413.10/33,225.72
6. Step 6: Final answer
   x = 25,283.89