Finding the Fourth Proportional to 22,893.76, 31,591.78 and 12,822.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,893.76 : 31,591.78 = 12,822.09 : x
2. Step 2: Convert to fraction form
   22,893.76/31,591.78 = 12,822.09/x
3. Step 3: Cross multiply
   22,893.76x = 31,591.78 × 12,822.09
4. Step 4: Simplify right side
   22,893.76x = 405,072,646.42
5. Step 5: Solve for x
   x = 405,072,646.42/22,893.76
6. Step 6: Final answer
   x = 17,693.58