Finding the Fourth Proportional to 22,564.56, 31,139.85 and 13,003.73

Step by Step Solution

1. Step 1: Write the proportion equation
   22,564.56 : 31,139.85 = 13,003.73 : x
2. Step 2: Convert to fraction form
   22,564.56/31,139.85 = 13,003.73/x
3. Step 3: Cross multiply
   22,564.56x = 31,139.85 × 13,003.73
4. Step 4: Simplify right side
   22,564.56x = 404,934,045.94
5. Step 5: Solve for x
   x = 404,934,045.94/22,564.56
6. Step 6: Final answer
   x = 17,945.58