Finding the Fourth Proportional to 23,470.76, 32,389.47 and 12,860.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,470.76 : 32,389.47 = 12,860.37 : x
2. Step 2: Convert to fraction form
   23,470.76/32,389.47 = 12,860.37/x
3. Step 3: Cross multiply
   23,470.76x = 32,389.47 × 12,860.37
4. Step 4: Simplify right side
   23,470.76x = 416,540,568.30
5. Step 5: Solve for x
   x = 416,540,568.30/23,470.76
6. Step 6: Final answer
   x = 17,747.21