Finding the Fourth Proportional to 22,483.28, 31,028.60 and 13,053.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,483.28 : 31,028.60 = 13,053.28 : x
2. Step 2: Convert to fraction form
   22,483.28/31,028.60 = 13,053.28/x
3. Step 3: Cross multiply
   22,483.28x = 31,028.60 × 13,053.28
4. Step 4: Simplify right side
   22,483.28x = 405,025,003.81
5. Step 5: Solve for x
   x = 405,025,003.81/22,483.28
6. Step 6: Final answer
   x = 18,014.50