Finding the Fourth Proportional to 23,149.89, 31,946.27 and 13,079.39

Step by Step Solution

1. Step 1: Write the proportion equation
   23,149.89 : 31,946.27 = 13,079.39 : x
2. Step 2: Convert to fraction form
   23,149.89/31,946.27 = 13,079.39/x
3. Step 3: Cross multiply
   23,149.89x = 31,946.27 × 13,079.39
4. Step 4: Simplify right side
   23,149.89x = 417,837,499.25
5. Step 5: Solve for x
   x = 417,837,499.25/23,149.89
6. Step 6: Final answer
   x = 18,049.22