Finding the Fourth Proportional to 31,436.64, 47,164.68 and 10,674.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,436.64 : 47,164.68 = 10,674.72 : x
2. Step 2: Convert to fraction form
   31,436.64/47,164.68 = 10,674.72/x
3. Step 3: Cross multiply
   31,436.64x = 47,164.68 × 10,674.72
4. Step 4: Simplify right side
   31,436.64x = 503,469,752.89
5. Step 5: Solve for x
   x = 503,469,752.89/31,436.64
6. Step 6: Final answer
   x = 16,015.38