Finding the Fourth Proportional to 23,597.16, 32,564.06 and 12,986.80

Step by Step Solution

1. Step 1: Write the proportion equation
   23,597.16 : 32,564.06 = 12,986.80 : x
2. Step 2: Convert to fraction form
   23,597.16/32,564.06 = 12,986.80/x
3. Step 3: Cross multiply
   23,597.16x = 32,564.06 × 12,986.80
4. Step 4: Simplify right side
   23,597.16x = 422,902,934.41
5. Step 5: Solve for x
   x = 422,902,934.41/23,597.16
6. Step 6: Final answer
   x = 17,921.77