Finding the Fourth Proportional to 10,809.16, 16,215.06 and 3,694.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,809.16 : 16,215.06 = 3,694.57 : x
2. Step 2: Convert to fraction form
   10,809.16/16,215.06 = 3,694.57/x
3. Step 3: Cross multiply
   10,809.16x = 16,215.06 × 3,694.57
4. Step 4: Simplify right side
   10,809.16x = 59,907,674.22
5. Step 5: Solve for x
   x = 59,907,674.22/10,809.16
6. Step 6: Final answer
   x = 5,542.31