Finding the Fourth Proportional to 17,571.80, 24,234.54 and 12,791.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,571.80 : 24,234.54 = 12,791.72 : x
2. Step 2: Convert to fraction form
   17,571.80/24,234.54 = 12,791.72/x
3. Step 3: Cross multiply
   17,571.80x = 24,234.54 × 12,791.72
4. Step 4: Simplify right side
   17,571.80x = 310,001,450.01
5. Step 5: Solve for x
   x = 310,001,450.01/17,571.80
6. Step 6: Final answer
   x = 17,641.99