Finding the Fourth Proportional to 22,740, 31,381.44 and 12,804

Step by Step Solution

1. Step 1: Write the proportion equation
   22,740 : 31,381.44 = 12,804 : x
2. Step 2: Convert to fraction form
   22,740/31,381.44 = 12,804/x
3. Step 3: Cross multiply
   22,740x = 31,381.44 × 12,804
4. Step 4: Simplify right side
   22,740x = 401,807,957.76
5. Step 5: Solve for x
   x = 401,807,957.76/22,740
6. Step 6: Final answer
   x = 17,669.66