Finding the Fourth Proportional to 22,206.58, 30,648.46 and 12,774.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,206.58 : 30,648.46 = 12,774.54 : x
2. Step 2: Convert to fraction form
   22,206.58/30,648.46 = 12,774.54/x
3. Step 3: Cross multiply
   22,206.58x = 30,648.46 × 12,774.54
4. Step 4: Simplify right side
   22,206.58x = 391,519,978.21
5. Step 5: Solve for x
   x = 391,519,978.21/22,206.58
6. Step 6: Final answer
   x = 17,630.81