Finding the Fourth Proportional to 5,554.88, 7,667.34 and 3,667.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,554.88 : 7,667.34 = 3,667.86 : x
2. Step 2: Convert to fraction form
   5,554.88/7,667.34 = 3,667.86/x
3. Step 3: Cross multiply
   5,554.88x = 7,667.34 × 3,667.86
4. Step 4: Simplify right side
   5,554.88x = 28,122,729.69
5. Step 5: Solve for x
   x = 28,122,729.69/5,554.88
6. Step 6: Final answer
   x = 5,062.71