Finding the Fourth Proportional to 21,754.16, 30,020.81 and 12,322.73

Step by Step Solution

1. Step 1: Write the proportion equation
   21,754.16 : 30,020.81 = 12,322.73 : x
2. Step 2: Convert to fraction form
   21,754.16/30,020.81 = 12,322.73/x
3. Step 3: Cross multiply
   21,754.16x = 30,020.81 × 12,322.73
4. Step 4: Simplify right side
   21,754.16x = 369,938,336.01
5. Step 5: Solve for x
   x = 369,938,336.01/21,754.16
6. Step 6: Final answer
   x = 17,005.41