Finding the Fourth Proportional to 31,899.92, 43,945.74 and 22,321.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,899.92 : 43,945.74 = 22,321.94 : x
2. Step 2: Convert to fraction form
   31,899.92/43,945.74 = 22,321.94/x
3. Step 3: Cross multiply
   31,899.92x = 43,945.74 × 22,321.94
4. Step 4: Simplify right side
   31,899.92x = 980,953,951.81
5. Step 5: Solve for x
   x = 980,953,951.81/31,899.92
6. Step 6: Final answer
   x = 30,750.99