Finding the Fourth Proportional to 23,630.52, 32,609.74 and 13,020.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,630.52 : 32,609.74 = 13,020.12 : x
2. Step 2: Convert to fraction form
   23,630.52/32,609.74 = 13,020.12/x
3. Step 3: Cross multiply
   23,630.52x = 32,609.74 × 13,020.12
4. Step 4: Simplify right side
   23,630.52x = 424,582,727.97
5. Step 5: Solve for x
   x = 424,582,727.97/23,630.52
6. Step 6: Final answer
   x = 17,967.56