Finding the Fourth Proportional to 31,969.69, 47,961.46 and 12,248.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,969.69 : 47,961.46 = 12,248.25 : x
2. Step 2: Convert to fraction form
   31,969.69/47,961.46 = 12,248.25/x
3. Step 3: Cross multiply
   31,969.69x = 47,961.46 × 12,248.25
4. Step 4: Simplify right side
   31,969.69x = 587,443,651.40
5. Step 5: Solve for x
   x = 587,443,651.40/31,969.69
6. Step 6: Final answer
   x = 18,375.02