Finding the Fourth Proportional to 10,809.81, 16,214.76 and 3,018.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,809.81 : 16,214.76 = 3,018.69 : x
2. Step 2: Convert to fraction form
   10,809.81/16,214.76 = 3,018.69/x
3. Step 3: Cross multiply
   10,809.81x = 16,214.76 × 3,018.69
4. Step 4: Simplify right side
   10,809.81x = 48,947,333.86
5. Step 5: Solve for x
   x = 48,947,333.86/10,809.81
6. Step 6: Final answer
   x = 4,528.05