Finding the Fourth Proportional to 31,606.24, 47,396.17 and 12,873.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,606.24 : 47,396.17 = 12,873.57 : x
2. Step 2: Convert to fraction form
   31,606.24/47,396.17 = 12,873.57/x
3. Step 3: Cross multiply
   31,606.24x = 47,396.17 × 12,873.57
4. Step 4: Simplify right side
   31,606.24x = 610,157,912.23
5. Step 5: Solve for x
   x = 610,157,912.23/31,606.24
6. Step 6: Final answer
   x = 19,304.98