Finding the Fourth Proportional to 22,271.34, 30,736.10 and 12,711.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,271.34 : 30,736.10 = 12,711.45 : x
2. Step 2: Convert to fraction form
   22,271.34/30,736.10 = 12,711.45/x
3. Step 3: Cross multiply
   22,271.34x = 30,736.10 × 12,711.45
4. Step 4: Simplify right side
   22,271.34x = 390,700,334.79
5. Step 5: Solve for x
   x = 390,700,334.79/22,271.34
6. Step 6: Final answer
   x = 17,542.74