Finding the Fourth Proportional to 22,362.89, 33,559.74 and 9,215.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,362.89 : 33,559.74 = 9,215.28 : x
2. Step 2: Convert to fraction form
   22,362.89/33,559.74 = 9,215.28/x
3. Step 3: Cross multiply
   22,362.89x = 33,559.74 × 9,215.28
4. Step 4: Simplify right side
   22,362.89x = 309,262,400.83
5. Step 5: Solve for x
   x = 309,262,400.83/22,362.89
6. Step 6: Final answer
   x = 13,829.27