Finding the Fourth Proportional to 31,970.69, 47,962.96 and 12,249.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,970.69 : 47,962.96 = 12,249.25 : x
2. Step 2: Convert to fraction form
   31,970.69/47,962.96 = 12,249.25/x
3. Step 3: Cross multiply
   31,970.69x = 47,962.96 × 12,249.25
4. Step 4: Simplify right side
   31,970.69x = 587,510,287.78
5. Step 5: Solve for x
   x = 587,510,287.78/31,970.69
6. Step 6: Final answer
   x = 18,376.53