Finding the Fourth Proportional to 5,703.56, 7,872.72 and 3,818.36

Step by Step Solution

1. Step 1: Write the proportion equation
   5,703.56 : 7,872.72 = 3,818.36 : x
2. Step 2: Convert to fraction form
   5,703.56/7,872.72 = 3,818.36/x
3. Step 3: Cross multiply
   5,703.56x = 7,872.72 × 3,818.36
4. Step 4: Simplify right side
   5,703.56x = 30,060,879.14
5. Step 5: Solve for x
   x = 30,060,879.14/5,703.56
6. Step 6: Final answer
   x = 5,270.55