Finding the Fourth Proportional to 14,436.38, 21,674.49 and 9,983.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,436.38 : 21,674.49 = 9,983.12 : x
2. Step 2: Convert to fraction form
   14,436.38/21,674.49 = 9,983.12/x
3. Step 3: Cross multiply
   14,436.38x = 21,674.49 × 9,983.12
4. Step 4: Simplify right side
   14,436.38x = 216,379,034.61
5. Step 5: Solve for x
   x = 216,379,034.61/14,436.38
6. Step 6: Final answer
   x = 14,988.46