Finding the Fourth Proportional to 5,472.12, 8,211.82 and 2,550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,472.12 : 8,211.82 = 2,550.72 : x
2. Step 2: Convert to fraction form
   5,472.12/8,211.82 = 2,550.72/x
3. Step 3: Cross multiply
   5,472.12x = 8,211.82 × 2,550.72
4. Step 4: Simplify right side
   5,472.12x = 20,946,053.51
5. Step 5: Solve for x
   x = 20,946,053.51/5,472.12
6. Step 6: Final answer
   x = 3,827.78