Finding the Fourth Proportional to 23,820.56, 32,871.24 and 13,209.96

Step by Step Solution

1. Step 1: Write the proportion equation
   23,820.56 : 32,871.24 = 13,209.96 : x
2. Step 2: Convert to fraction form
   23,820.56/32,871.24 = 13,209.96/x
3. Step 3: Cross multiply
   23,820.56x = 32,871.24 × 13,209.96
4. Step 4: Simplify right side
   23,820.56x = 434,227,765.55
5. Step 5: Solve for x
   x = 434,227,765.55/23,820.56
6. Step 6: Final answer
   x = 18,229.12