Finding the Fourth Proportional to 21,300.38, 31,959.38 and 8,822.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,300.38 : 31,959.38 = 8,822.94 : x
2. Step 2: Convert to fraction form
   21,300.38/31,959.38 = 8,822.94/x
3. Step 3: Cross multiply
   21,300.38x = 31,959.38 × 8,822.94
4. Step 4: Simplify right side
   21,300.38x = 281,975,692.18
5. Step 5: Solve for x
   x = 281,975,692.18/21,300.38
6. Step 6: Final answer
   x = 13,238.06