Finding the Fourth Proportional to 22,784.41, 31,443.24 and 13,223.58

Step by Step Solution

1. Step 1: Write the proportion equation
   22,784.41 : 31,443.24 = 13,223.58 : x
2. Step 2: Convert to fraction form
   22,784.41/31,443.24 = 13,223.58/x
3. Step 3: Cross multiply
   22,784.41x = 31,443.24 × 13,223.58
4. Step 4: Simplify right side
   22,784.41x = 415,792,056.89
5. Step 5: Solve for x
   x = 415,792,056.89/22,784.41
6. Step 6: Final answer
   x = 18,248.97