Finding the Fourth Proportional to 31,725.72, 47,584.76 and 8,353.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,725.72 : 47,584.76 = 8,353.98 : x
2. Step 2: Convert to fraction form
   31,725.72/47,584.76 = 8,353.98/x
3. Step 3: Cross multiply
   31,725.72x = 47,584.76 × 8,353.98
4. Step 4: Simplify right side
   31,725.72x = 397,522,091.57
5. Step 5: Solve for x
   x = 397,522,091.57/31,725.72
6. Step 6: Final answer
   x = 12,529.96