Finding the Fourth Proportional to 3,096.50, 4,276.70 and 2,100.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,096.50 : 4,276.70 = 2,100.05 : x
2. Step 2: Convert to fraction form
   3,096.50/4,276.70 = 2,100.05/x
3. Step 3: Cross multiply
   3,096.50x = 4,276.70 × 2,100.05
4. Step 4: Simplify right side
   3,096.50x = 8,981,284.03
5. Step 5: Solve for x
   x = 8,981,284.03/3,096.50
6. Step 6: Final answer
   x = 2,900.46