Finding the Fourth Proportional to 6,109.79, 9,165.59 and 2,213.29

Step by Step Solution

1. Step 1: Write the proportion equation
   6,109.79 : 9,165.59 = 2,213.29 : x
2. Step 2: Convert to fraction form
   6,109.79/9,165.59 = 2,213.29/x
3. Step 3: Cross multiply
   6,109.79x = 9,165.59 × 2,213.29
4. Step 4: Simplify right side
   6,109.79x = 20,286,108.69
5. Step 5: Solve for x
   x = 20,286,108.69/6,109.79
6. Step 6: Final answer
   x = 3,320.26