Finding the Fourth Proportional to 22,356.36, 30,852.54 and 12,285.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,356.36 : 30,852.54 = 12,285.72 : x
2. Step 2: Convert to fraction form
   22,356.36/30,852.54 = 12,285.72/x
3. Step 3: Cross multiply
   22,356.36x = 30,852.54 × 12,285.72
4. Step 4: Simplify right side
   22,356.36x = 379,045,667.73
5. Step 5: Solve for x
   x = 379,045,667.73/22,356.36
6. Step 6: Final answer
   x = 16,954.71