Finding the Fourth Proportional to 23,150.37, 31,947.30 and 12,539.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,150.37 : 31,947.30 = 12,539.37 : x
2. Step 2: Convert to fraction form
   23,150.37/31,947.30 = 12,539.37/x
3. Step 3: Cross multiply
   23,150.37x = 31,947.30 × 12,539.37
4. Step 4: Simplify right side
   23,150.37x = 400,599,015.20
5. Step 5: Solve for x
   x = 400,599,015.20/23,150.37
6. Step 6: Final answer
   x = 17,304.22