Finding the Fourth Proportional to 20,271.84, 30,353.06 and 13,234.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,271.84 : 30,353.06 = 13,234.42 : x
2. Step 2: Convert to fraction form
   20,271.84/30,353.06 = 13,234.42/x
3. Step 3: Cross multiply
   20,271.84x = 30,353.06 × 13,234.42
4. Step 4: Simplify right side
   20,271.84x = 401,705,144.33
5. Step 5: Solve for x
   x = 401,705,144.33/20,271.84
6. Step 6: Final answer
   x = 19,815.92