Finding the Fourth Proportional to 22,822.73, 31,493.05 and 13,131.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,822.73 : 31,493.05 = 13,131.94 : x
2. Step 2: Convert to fraction form
   22,822.73/31,493.05 = 13,131.94/x
3. Step 3: Cross multiply
   22,822.73x = 31,493.05 × 13,131.94
4. Step 4: Simplify right side
   22,822.73x = 413,564,864.37
5. Step 5: Solve for x
   x = 413,564,864.37/22,822.73
6. Step 6: Final answer
   x = 18,120.75