Finding the Fourth Proportional to 8,300.48, 12,450.72 and 2,144

Step by Step Solution

1. Step 1: Write the proportion equation
   8,300.48 : 12,450.72 = 2,144 : x
2. Step 2: Convert to fraction form
   8,300.48/12,450.72 = 2,144/x
3. Step 3: Cross multiply
   8,300.48x = 12,450.72 × 2,144
4. Step 4: Simplify right side
   8,300.48x = 26,694,343.68
5. Step 5: Solve for x
   x = 26,694,343.68/8,300.48
6. Step 6: Final answer
   x = 3,216