Finding the Fourth Proportional to 22,917.56, 31,628.77 and 12,846.97

Step by Step Solution

1. Step 1: Write the proportion equation
   22,917.56 : 31,628.77 = 12,846.97 : x
2. Step 2: Convert to fraction form
   22,917.56/31,628.77 = 12,846.97/x
3. Step 3: Cross multiply
   22,917.56x = 31,628.77 × 12,846.97
4. Step 4: Simplify right side
   22,917.56x = 406,333,859.33
5. Step 5: Solve for x
   x = 406,333,859.33/22,917.56
6. Step 6: Final answer
   x = 17,730.24