Finding the Fourth Proportional to 22,473.40, 31,019.46 and 13,045

Step by Step Solution

1. Step 1: Write the proportion equation
   22,473.40 : 31,019.46 = 13,045 : x
2. Step 2: Convert to fraction form
   22,473.40/31,019.46 = 13,045/x
3. Step 3: Cross multiply
   22,473.40x = 31,019.46 × 13,045
4. Step 4: Simplify right side
   22,473.40x = 404,648,855.70
5. Step 5: Solve for x
   x = 404,648,855.70/22,473.40
6. Step 6: Final answer
   x = 18,005.68