Finding the Fourth Proportional to 21,075.38, 31,614.89 and 5,493

Step by Step Solution

1. Step 1: Write the proportion equation
   21,075.38 : 31,614.89 = 5,493 : x
2. Step 2: Convert to fraction form
   21,075.38/31,614.89 = 5,493/x
3. Step 3: Cross multiply
   21,075.38x = 31,614.89 × 5,493
4. Step 4: Simplify right side
   21,075.38x = 173,660,563.31
5. Step 5: Solve for x
   x = 173,660,563.31/21,075.38
6. Step 6: Final answer
   x = 8,239.98