Finding the Fourth Proportional to 23,178.54, 31,984.41 and 13,105.58

Step by Step Solution

1. Step 1: Write the proportion equation
   23,178.54 : 31,984.41 = 13,105.58 : x
2. Step 2: Convert to fraction form
   23,178.54/31,984.41 = 13,105.58/x
3. Step 3: Cross multiply
   23,178.54x = 31,984.41 × 13,105.58
4. Step 4: Simplify right side
   23,178.54x = 419,174,244.01
5. Step 5: Solve for x
   x = 419,174,244.01/23,178.54
6. Step 6: Final answer
   x = 18,084.58