Finding the Fourth Proportional to 23,148.37, 31,946.72 and 13,078.66

Step by Step Solution

1. Step 1: Write the proportion equation
   23,148.37 : 31,946.72 = 13,078.66 : x
2. Step 2: Convert to fraction form
   23,148.37/31,946.72 = 13,078.66/x
3. Step 3: Cross multiply
   23,148.37x = 31,946.72 × 13,078.66
4. Step 4: Simplify right side
   23,148.37x = 417,820,223.60
5. Step 5: Solve for x
   x = 417,820,223.60/23,148.37
6. Step 6: Final answer
   x = 18,049.66