Finding the Fourth Proportional to 31,395.39, 43,293.04 and 21,846.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,395.39 : 43,293.04 = 21,846.09 : x
2. Step 2: Convert to fraction form
   31,395.39/43,293.04 = 21,846.09/x
3. Step 3: Cross multiply
   31,395.39x = 43,293.04 × 21,846.09
4. Step 4: Simplify right side
   31,395.39x = 945,783,648.21
5. Step 5: Solve for x
   x = 945,783,648.21/31,395.39
6. Step 6: Final answer
   x = 30,124.92