Finding the Fourth Proportional to 31,834.32, 43,944.83 and 21,488.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,834.32 : 43,944.83 = 21,488.31 : x
2. Step 2: Convert to fraction form
   31,834.32/43,944.83 = 21,488.31/x
3. Step 3: Cross multiply
   31,834.32x = 43,944.83 × 21,488.31
4. Step 4: Simplify right side
   31,834.32x = 944,300,129.94
5. Step 5: Solve for x
   x = 944,300,129.94/31,834.32
6. Step 6: Final answer
   x = 29,662.96