Finding the Fourth Proportional to 10,981.46, 16,488.59 and 10,817.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.46 : 16,488.59 = 10,817.44 : x
2. Step 2: Convert to fraction form
   10,981.46/16,488.59 = 10,817.44/x
3. Step 3: Cross multiply
   10,981.46x = 16,488.59 × 10,817.44
4. Step 4: Simplify right side
   10,981.46x = 178,364,333.01
5. Step 5: Solve for x
   x = 178,364,333.01/10,981.46
6. Step 6: Final answer
   x = 16,242.32