Finding the Fourth Proportional to 22,128.57, 33,213.69 and 14,738.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,128.57 : 33,213.69 = 14,738.22 : x
2. Step 2: Convert to fraction form
   22,128.57/33,213.69 = 14,738.22/x
3. Step 3: Cross multiply
   22,128.57x = 33,213.69 × 14,738.22
4. Step 4: Simplify right side
   22,128.57x = 489,510,670.23
5. Step 5: Solve for x
   x = 489,510,670.23/22,128.57
6. Step 6: Final answer
   x = 22,121.21