Finding the Fourth Proportional to 16,743.39, 23,061.51 and 12,480.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,743.39 : 23,061.51 = 12,480.80 : x
2. Step 2: Convert to fraction form
   16,743.39/23,061.51 = 12,480.80/x
3. Step 3: Cross multiply
   16,743.39x = 23,061.51 × 12,480.80
4. Step 4: Simplify right side
   16,743.39x = 287,825,978.70
5. Step 5: Solve for x
   x = 287,825,978.70/16,743.39
6. Step 6: Final answer
   x = 17,190.42