Finding the Fourth Proportional to 5,667.54, 7,818.48 and 3,678.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,667.54 : 7,818.48 = 3,678.72 : x
2. Step 2: Convert to fraction form
   5,667.54/7,818.48 = 3,678.72/x
3. Step 3: Cross multiply
   5,667.54x = 7,818.48 × 3,678.72
4. Step 4: Simplify right side
   5,667.54x = 28,761,998.75
5. Step 5: Solve for x
   x = 28,761,998.75/5,667.54
6. Step 6: Final answer
   x = 5,074.86