Finding the Fourth Proportional to 10,820.50, 16,216.76 and 5,551.14

Step by Step Solution

1. Step 1: Write the proportion equation
   10,820.50 : 16,216.76 = 5,551.14 : x
2. Step 2: Convert to fraction form
   10,820.50/16,216.76 = 5,551.14/x
3. Step 3: Cross multiply
   10,820.50x = 16,216.76 × 5,551.14
4. Step 4: Simplify right side
   10,820.50x = 90,021,505.11
5. Step 5: Solve for x
   x = 90,021,505.11/10,820.50
6. Step 6: Final answer
   x = 8,319.53