Finding the Fourth Proportional to 5,945.53, 8,205.86 and 3,427.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,945.53 : 8,205.86 = 3,427.20 : x
2. Step 2: Convert to fraction form
   5,945.53/8,205.86 = 3,427.20/x
3. Step 3: Cross multiply
   5,945.53x = 8,205.86 × 3,427.20
4. Step 4: Simplify right side
   5,945.53x = 28,123,123.39
5. Step 5: Solve for x
   x = 28,123,123.39/5,945.53
6. Step 6: Final answer
   x = 4,730.13