Finding the Fourth Proportional to 23,425.60, 32,327.56 and 12,815

Step by Step Solution

1. Step 1: Write the proportion equation
   23,425.60 : 32,327.56 = 12,815 : x
2. Step 2: Convert to fraction form
   23,425.60/32,327.56 = 12,815/x
3. Step 3: Cross multiply
   23,425.60x = 32,327.56 × 12,815
4. Step 4: Simplify right side
   23,425.60x = 414,277,681.40
5. Step 5: Solve for x
   x = 414,277,681.40/23,425.60
6. Step 6: Final answer
   x = 17,684.83