Finding the Fourth Proportional to 5,399.88, 8,096.61 and 2,109.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,399.88 : 8,096.61 = 2,109.15 : x
2. Step 2: Convert to fraction form
   5,399.88/8,096.61 = 2,109.15/x
3. Step 3: Cross multiply
   5,399.88x = 8,096.61 × 2,109.15
4. Step 4: Simplify right side
   5,399.88x = 17,076,964.98
5. Step 5: Solve for x
   x = 17,076,964.98/5,399.88
6. Step 6: Final answer
   x = 3,162.47