Finding the Fourth Proportional to 5,162.21, 7,123.81 and 2,804.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,162.21 : 7,123.81 = 2,804.37 : x
2. Step 2: Convert to fraction form
   5,162.21/7,123.81 = 2,804.37/x
3. Step 3: Cross multiply
   5,162.21x = 7,123.81 × 2,804.37
4. Step 4: Simplify right side
   5,162.21x = 19,977,749.41
5. Step 5: Solve for x
   x = 19,977,749.41/5,162.21
6. Step 6: Final answer
   x = 3,870.00