Finding the Fourth Proportional to 5,703.72, 7,870.62 and 3,185.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,703.72 : 7,870.62 = 3,185.61 : x
2. Step 2: Convert to fraction form
   5,703.72/7,870.62 = 3,185.61/x
3. Step 3: Cross multiply
   5,703.72x = 7,870.62 × 3,185.61
4. Step 4: Simplify right side
   5,703.72x = 25,072,725.78
5. Step 5: Solve for x
   x = 25,072,725.78/5,703.72
6. Step 6: Final answer
   x = 4,395.85