Finding the Fourth Proportional to 22,754.48, 31,388.43 and 13,321.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,754.48 : 31,388.43 = 13,321.22 : x
2. Step 2: Convert to fraction form
   22,754.48/31,388.43 = 13,321.22/x
3. Step 3: Cross multiply
   22,754.48x = 31,388.43 × 13,321.22
4. Step 4: Simplify right side
   22,754.48x = 418,132,181.48
5. Step 5: Solve for x
   x = 418,132,181.48/22,754.48
6. Step 6: Final answer
   x = 18,375.82