Finding the Fourth Proportional to 5,162.42, 7,124.16 and 2,804.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,162.42 : 7,124.16 = 2,804.56 : x
2. Step 2: Convert to fraction form
   5,162.42/7,124.16 = 2,804.56/x
3. Step 3: Cross multiply
   5,162.42x = 7,124.16 × 2,804.56
4. Step 4: Simplify right side
   5,162.42x = 19,980,134.17
5. Step 5: Solve for x
   x = 19,980,134.17/5,162.42
6. Step 6: Final answer
   x = 3,870.31