Finding the Fourth Proportional to 10,818.50, 16,213.76 and 5,549.14

Step by Step Solution

1. Step 1: Write the proportion equation
   10,818.50 : 16,213.76 = 5,549.14 : x
2. Step 2: Convert to fraction form
   10,818.50/16,213.76 = 5,549.14/x
3. Step 3: Cross multiply
   10,818.50x = 16,213.76 × 5,549.14
4. Step 4: Simplify right side
   10,818.50x = 89,972,424.17
5. Step 5: Solve for x
   x = 89,972,424.17/10,818.50
6. Step 6: Final answer
   x = 8,316.53