Finding the Fourth Proportional to 23,469.75, 32,388.26 and 12,859.79

Step by Step Solution

1. Step 1: Write the proportion equation
   23,469.75 : 32,388.26 = 12,859.79 : x
2. Step 2: Convert to fraction form
   23,469.75/32,388.26 = 12,859.79/x
3. Step 3: Cross multiply
   23,469.75x = 32,388.26 × 12,859.79
4. Step 4: Simplify right side
   23,469.75x = 416,505,995.83
5. Step 5: Solve for x
   x = 416,505,995.83/23,469.75
6. Step 6: Final answer
   x = 17,746.50