Finding the Fourth Proportional to 22,056, 30,439.49 and 13,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,056 : 30,439.49 = 13,105.50 : x
2. Step 2: Convert to fraction form
   22,056/30,439.49 = 13,105.50/x
3. Step 3: Cross multiply
   22,056x = 30,439.49 × 13,105.50
4. Step 4: Simplify right side
   22,056x = 398,924,736.20
5. Step 5: Solve for x
   x = 398,924,736.20/22,056
6. Step 6: Final answer
   x = 18,086.90