Finding the Fourth Proportional to 23,077.50, 31,846.95 and 13,143.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,077.50 : 31,846.95 = 13,143.42 : x
2. Step 2: Convert to fraction form
   23,077.50/31,846.95 = 13,143.42/x
3. Step 3: Cross multiply
   23,077.50x = 31,846.95 × 13,143.42
4. Step 4: Simplify right side
   23,077.50x = 418,577,839.57
5. Step 5: Solve for x
   x = 418,577,839.57/23,077.50
6. Step 6: Final answer
   x = 18,137.92