Finding the Fourth Proportional to 22,945.63, 31,664.47 and 12,873.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,945.63 : 31,664.47 = 12,873.89 : x
2. Step 2: Convert to fraction form
   22,945.63/31,664.47 = 12,873.89/x
3. Step 3: Cross multiply
   22,945.63x = 31,664.47 × 12,873.89
4. Step 4: Simplify right side
   22,945.63x = 407,644,903.69
5. Step 5: Solve for x
   x = 407,644,903.69/22,945.63
6. Step 6: Final answer
   x = 17,765.69