Finding the Fourth Proportional to 23,149.34, 31,946.10 and 12,539

Step by Step Solution

1. Step 1: Write the proportion equation
   23,149.34 : 31,946.10 = 12,539 : x
2. Step 2: Convert to fraction form
   23,149.34/31,946.10 = 12,539/x
3. Step 3: Cross multiply
   23,149.34x = 31,946.10 × 12,539
4. Step 4: Simplify right side
   23,149.34x = 400,572,147.90
5. Step 5: Solve for x
   x = 400,572,147.90/23,149.34
6. Step 6: Final answer
   x = 17,303.83