Finding the Fourth Proportional to 22,356.48, 30,851.86 and 12,285.35

Step by Step Solution

1. Step 1: Write the proportion equation
   22,356.48 : 30,851.86 = 12,285.35 : x
2. Step 2: Convert to fraction form
   22,356.48/30,851.86 = 12,285.35/x
3. Step 3: Cross multiply
   22,356.48x = 30,851.86 × 12,285.35
4. Step 4: Simplify right side
   22,356.48x = 379,025,713.28
5. Step 5: Solve for x
   x = 379,025,713.28/22,356.48
6. Step 6: Final answer
   x = 16,953.73