Finding the Fourth Proportional to 22,884.42, 31,578.81 and 12,810.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,884.42 : 31,578.81 = 12,810.54 : x
2. Step 2: Convert to fraction form
   22,884.42/31,578.81 = 12,810.54/x
3. Step 3: Cross multiply
   22,884.42x = 31,578.81 × 12,810.54
4. Step 4: Simplify right side
   22,884.42x = 404,541,608.66
5. Step 5: Solve for x
   x = 404,541,608.66/22,884.42
6. Step 6: Final answer
   x = 17,677.60