Finding the Fourth Proportional to 22,351.83, 30,845.40 and 12,280.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,351.83 : 30,845.40 = 12,280.05 : x
2. Step 2: Convert to fraction form
   22,351.83/30,845.40 = 12,280.05/x
3. Step 3: Cross multiply
   22,351.83x = 30,845.40 × 12,280.05
4. Step 4: Simplify right side
   22,351.83x = 378,783,054.27
5. Step 5: Solve for x
   x = 378,783,054.27/22,351.83
6. Step 6: Final answer
   x = 16,946.40