Finding the Fourth Proportional to 22,949.33, 31,669.79 and 12,878.73

Step by Step Solution

1. Step 1: Write the proportion equation
   22,949.33 : 31,669.79 = 12,878.73 : x
2. Step 2: Convert to fraction form
   22,949.33/31,669.79 = 12,878.73/x
3. Step 3: Cross multiply
   22,949.33x = 31,669.79 × 12,878.73
4. Step 4: Simplify right side
   22,949.33x = 407,866,610.17
5. Step 5: Solve for x
   x = 407,866,610.17/22,949.33
6. Step 6: Final answer
   x = 17,772.49