Finding the Fourth Proportional to 31,938.50, 47,908.56 and 11,162

Step by Step Solution

1. Step 1: Write the proportion equation
   31,938.50 : 47,908.56 = 11,162 : x
2. Step 2: Convert to fraction form
   31,938.50/47,908.56 = 11,162/x
3. Step 3: Cross multiply
   31,938.50x = 47,908.56 × 11,162
4. Step 4: Simplify right side
   31,938.50x = 534,755,346.72
5. Step 5: Solve for x
   x = 534,755,346.72/31,938.50
6. Step 6: Final answer
   x = 16,743.28