Finding the Fourth Proportional to 31,936.72, 47,861.16 and 16,321.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,936.72 : 47,861.16 = 16,321.72 : x
2. Step 2: Convert to fraction form
   31,936.72/47,861.16 = 16,321.72/x
3. Step 3: Cross multiply
   31,936.72x = 47,861.16 × 16,321.72
4. Step 4: Simplify right side
   31,936.72x = 781,176,452.40
5. Step 5: Solve for x
   x = 781,176,452.40/31,936.72
6. Step 6: Final answer
   x = 24,460.13