Finding the Fourth Proportional to 22,918.33, 31,628.55 and 12,846.19

Step by Step Solution

1. Step 1: Write the proportion equation
   22,918.33 : 31,628.55 = 12,846.19 : x
2. Step 2: Convert to fraction form
   22,918.33/31,628.55 = 12,846.19/x
3. Step 3: Cross multiply
   22,918.33x = 31,628.55 × 12,846.19
4. Step 4: Simplify right side
   22,918.33x = 406,306,362.72
5. Step 5: Solve for x
   x = 406,306,362.72/22,918.33
6. Step 6: Final answer
   x = 17,728.45