Finding the Fourth Proportional to 10,981.35, 16,433.75 and 8,983.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.35 : 16,433.75 = 8,983.89 : x
2. Step 2: Convert to fraction form
   10,981.35/16,433.75 = 8,983.89/x
3. Step 3: Cross multiply
   10,981.35x = 16,433.75 × 8,983.89
4. Step 4: Simplify right side
   10,981.35x = 147,639,002.29
5. Step 5: Solve for x
   x = 147,639,002.29/10,981.35
6. Step 6: Final answer
   x = 13,444.52