Finding the Fourth Proportional to 22,276.52, 30,740.72 and 12,205.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,276.52 : 30,740.72 = 12,205.05 : x
2. Step 2: Convert to fraction form
   22,276.52/30,740.72 = 12,205.05/x
3. Step 3: Cross multiply
   22,276.52x = 30,740.72 × 12,205.05
4. Step 4: Simplify right side
   22,276.52x = 375,191,848.33
5. Step 5: Solve for x
   x = 375,191,848.33/22,276.52
6. Step 6: Final answer
   x = 16,842.48