Finding the Fourth Proportional to 6,723.08, 10,085.72 and 2,105

Step by Step Solution

1. Step 1: Write the proportion equation
   6,723.08 : 10,085.72 = 2,105 : x
2. Step 2: Convert to fraction form
   6,723.08/10,085.72 = 2,105/x
3. Step 3: Cross multiply
   6,723.08x = 10,085.72 × 2,105
4. Step 4: Simplify right side
   6,723.08x = 21,230,440.60
5. Step 5: Solve for x
   x = 21,230,440.60/6,723.08
6. Step 6: Final answer
   x = 3,157.84