Finding the Fourth Proportional to 22,490.34, 31,040.46 and 13,064.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,490.34 : 31,040.46 = 13,064.37 : x
2. Step 2: Convert to fraction form
   22,490.34/31,040.46 = 13,064.37/x
3. Step 3: Cross multiply
   22,490.34x = 31,040.46 × 13,064.37
4. Step 4: Simplify right side
   22,490.34x = 405,524,054.41
5. Step 5: Solve for x
   x = 405,524,054.41/22,490.34
6. Step 6: Final answer
   x = 18,031.03