Finding the Fourth Proportional to 10,866.49, 16,300.92 and 3,469.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,866.49 : 16,300.92 = 3,469.21 : x
2. Step 2: Convert to fraction form
   10,866.49/16,300.92 = 3,469.21/x
3. Step 3: Cross multiply
   10,866.49x = 16,300.92 × 3,469.21
4. Step 4: Simplify right side
   10,866.49x = 56,551,314.67
5. Step 5: Solve for x
   x = 56,551,314.67/10,866.49
6. Step 6: Final answer
   x = 5,204.19