Finding the Fourth Proportional to 23,564.39, 32,517 and 13,490.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,564.39 : 32,517 = 13,490.42 : x
2. Step 2: Convert to fraction form
   23,564.39/32,517 = 13,490.42/x
3. Step 3: Cross multiply
   23,564.39x = 32,517 × 13,490.42
4. Step 4: Simplify right side
   23,564.39x = 438,667,987.14
5. Step 5: Solve for x
   x = 438,667,987.14/23,564.39
6. Step 6: Final answer
   x = 18,615.72