Finding the Fourth Proportional to 22,480.56, 31,020.84 and 13,047.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,480.56 : 31,020.84 = 13,047.30 : x
2. Step 2: Convert to fraction form
   22,480.56/31,020.84 = 13,047.30/x
3. Step 3: Cross multiply
   22,480.56x = 31,020.84 × 13,047.30
4. Step 4: Simplify right side
   22,480.56x = 404,738,205.73
5. Step 5: Solve for x
   x = 404,738,205.73/22,480.56
6. Step 6: Final answer
   x = 18,003.92