Finding the Fourth Proportional to 31,404.15, 47,115.39 and 12,674.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,404.15 : 47,115.39 = 12,674.62 : x
2. Step 2: Convert to fraction form
   31,404.15/47,115.39 = 12,674.62/x
3. Step 3: Cross multiply
   31,404.15x = 47,115.39 × 12,674.62
4. Step 4: Simplify right side
   31,404.15x = 597,169,601.03
5. Step 5: Solve for x
   x = 597,169,601.03/31,404.15
6. Step 6: Final answer
   x = 19,015.63