Finding the Fourth Proportional to 31,976.72, 44,108.30 and 21,222.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,976.72 : 44,108.30 = 21,222.14 : x
2. Step 2: Convert to fraction form
   31,976.72/44,108.30 = 21,222.14/x
3. Step 3: Cross multiply
   31,976.72x = 44,108.30 × 21,222.14
4. Step 4: Simplify right side
   31,976.72x = 936,072,517.76
5. Step 5: Solve for x
   x = 936,072,517.76/31,976.72
6. Step 6: Final answer
   x = 29,273.56