Finding the Fourth Proportional to 23,085, 31,860.41 and 13,015.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,085 : 31,860.41 = 13,015.49 : x
2. Step 2: Convert to fraction form
   23,085/31,860.41 = 13,015.49/x
3. Step 3: Cross multiply
   23,085x = 31,860.41 × 13,015.49
4. Step 4: Simplify right side
   23,085x = 414,678,623.37
5. Step 5: Solve for x
   x = 414,678,623.37/23,085
6. Step 6: Final answer
   x = 17,963.12