Finding the Fourth Proportional to 5,185.27, 7,155.71 and 2,827.45

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185.27 : 7,155.71 = 2,827.45 : x
2. Step 2: Convert to fraction form
   5,185.27/7,155.71 = 2,827.45/x
3. Step 3: Cross multiply
   5,185.27x = 7,155.71 × 2,827.45
4. Step 4: Simplify right side
   5,185.27x = 20,232,398.10
5. Step 5: Solve for x
   x = 20,232,398.10/5,185.27
6. Step 6: Final answer
   x = 3,901.90