Finding the Fourth Proportional to 22,274.50, 30,738.90 and 12,338.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,274.50 : 30,738.90 = 12,338.50 : x
2. Step 2: Convert to fraction form
   22,274.50/30,738.90 = 12,338.50/x
3. Step 3: Cross multiply
   22,274.50x = 30,738.90 × 12,338.50
4. Step 4: Simplify right side
   22,274.50x = 379,271,917.65
5. Step 5: Solve for x
   x = 379,271,917.65/22,274.50
6. Step 6: Final answer
   x = 17,027.18