Finding the Fourth Proportional to 5,667.39, 7,818.87 and 4,178.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,667.39 : 7,818.87 = 4,178.86 : x
2. Step 2: Convert to fraction form
   5,667.39/7,818.87 = 4,178.86/x
3. Step 3: Cross multiply
   5,667.39x = 7,818.87 × 4,178.86
4. Step 4: Simplify right side
   5,667.39x = 32,673,963.09
5. Step 5: Solve for x
   x = 32,673,963.09/5,667.39
6. Step 6: Final answer
   x = 5,765.26