Finding the Fourth Proportional to 23,289.06, 32,139.48 and 12,679.27

Step by Step Solution

1. Step 1: Write the proportion equation
   23,289.06 : 32,139.48 = 12,679.27 : x
2. Step 2: Convert to fraction form
   23,289.06/32,139.48 = 12,679.27/x
3. Step 3: Cross multiply
   23,289.06x = 32,139.48 × 12,679.27
4. Step 4: Simplify right side
   23,289.06x = 407,505,185.58
5. Step 5: Solve for x
   x = 407,505,185.58/23,289.06
6. Step 6: Final answer
   x = 17,497.71