Finding the Fourth Proportional to 23,385.32, 32,270.82 and 13,831.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,385.32 : 32,270.82 = 13,831.40 : x
2. Step 2: Convert to fraction form
   23,385.32/32,270.82 = 13,831.40/x
3. Step 3: Cross multiply
   23,385.32x = 32,270.82 × 13,831.40
4. Step 4: Simplify right side
   23,385.32x = 446,350,619.75
5. Step 5: Solve for x
   x = 446,350,619.75/23,385.32
6. Step 6: Final answer
   x = 19,086.79