Finding the Fourth Proportional to 23,899.72, 32,982.45 and 13,145.04

Step by Step Solution

1. Step 1: Write the proportion equation
   23,899.72 : 32,982.45 = 13,145.04 : x
2. Step 2: Convert to fraction form
   23,899.72/32,982.45 = 13,145.04/x
3. Step 3: Cross multiply
   23,899.72x = 32,982.45 × 13,145.04
4. Step 4: Simplify right side
   23,899.72x = 433,555,624.55
5. Step 5: Solve for x
   x = 433,555,624.55/23,899.72
6. Step 6: Final answer
   x = 18,140.62