Finding the Fourth Proportional to 20,520.72, 30,783.59 and 7,014.12

Step by Step Solution

1. Step 1: Write the proportion equation
   20,520.72 : 30,783.59 = 7,014.12 : x
2. Step 2: Convert to fraction form
   20,520.72/30,783.59 = 7,014.12/x
3. Step 3: Cross multiply
   20,520.72x = 30,783.59 × 7,014.12
4. Step 4: Simplify right side
   20,520.72x = 215,919,882.70
5. Step 5: Solve for x
   x = 215,919,882.70/20,520.72
6. Step 6: Final answer
   x = 10,522.04