Finding the Fourth Proportional to 30,217.57, 41,688.61 and 22,278.67

Step by Step Solution

1. Step 1: Write the proportion equation
   30,217.57 : 41,688.61 = 22,278.67 : x
2. Step 2: Convert to fraction form
   30,217.57/41,688.61 = 22,278.67/x
3. Step 3: Cross multiply
   30,217.57x = 41,688.61 × 22,278.67
4. Step 4: Simplify right side
   30,217.57x = 928,766,784.95
5. Step 5: Solve for x
   x = 928,766,784.95/30,217.57
6. Step 6: Final answer
   x = 30,735.99