Finding the Fourth Proportional to 21,162.73, 31,744.41 and 8,011.57

Step by Step Solution

1. Step 1: Write the proportion equation
   21,162.73 : 31,744.41 = 8,011.57 : x
2. Step 2: Convert to fraction form
   21,162.73/31,744.41 = 8,011.57/x
3. Step 3: Cross multiply
   21,162.73x = 31,744.41 × 8,011.57
4. Step 4: Simplify right side
   21,162.73x = 254,322,562.82
5. Step 5: Solve for x
   x = 254,322,562.82/21,162.73
6. Step 6: Final answer
   x = 12,017.47