Finding the Fourth Proportional to 23,426.37, 32,328 and 12,815.79

Step by Step Solution

1. Step 1: Write the proportion equation
   23,426.37 : 32,328 = 12,815.79 : x
2. Step 2: Convert to fraction form
   23,426.37/32,328 = 12,815.79/x
3. Step 3: Cross multiply
   23,426.37x = 32,328 × 12,815.79
4. Step 4: Simplify right side
   23,426.37x = 414,308,859.12
5. Step 5: Solve for x
   x = 414,308,859.12/23,426.37
6. Step 6: Final answer
   x = 17,685.58