Finding the Fourth Proportional to 23,340.48, 32,209.56 and 12,729.89

Step by Step Solution

1. Step 1: Write the proportion equation
   23,340.48 : 32,209.56 = 12,729.89 : x
2. Step 2: Convert to fraction form
   23,340.48/32,209.56 = 12,729.89/x
3. Step 3: Cross multiply
   23,340.48x = 32,209.56 × 12,729.89
4. Step 4: Simplify right side
   23,340.48x = 410,023,994.70
5. Step 5: Solve for x
   x = 410,023,994.70/23,340.48
6. Step 6: Final answer
   x = 17,567.08