Finding the Fourth Proportional to 5,162.72, 7,124.54 and 2,804.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,162.72 : 7,124.54 = 2,804.86 : x
2. Step 2: Convert to fraction form
   5,162.72/7,124.54 = 2,804.86/x
3. Step 3: Cross multiply
   5,162.72x = 7,124.54 × 2,804.86
4. Step 4: Simplify right side
   5,162.72x = 19,983,337.26
5. Step 5: Solve for x
   x = 19,983,337.26/5,162.72
6. Step 6: Final answer
   x = 3,870.70