Finding the Fourth Proportional to 23,791.72, 32,831.61 and 13,180.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,791.72 : 32,831.61 = 13,180.72 : x
2. Step 2: Convert to fraction form
   23,791.72/32,831.61 = 13,180.72/x
3. Step 3: Cross multiply
   23,791.72x = 32,831.61 × 13,180.72
4. Step 4: Simplify right side
   23,791.72x = 432,744,258.56
5. Step 5: Solve for x
   x = 432,744,258.56/23,791.72
6. Step 6: Final answer
   x = 18,188.86