Finding the Fourth Proportional to 5,551.74, 7,667.70 and 3,780.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,551.74 : 7,667.70 = 3,780.27 : x
2. Step 2: Convert to fraction form
   5,551.74/7,667.70 = 3,780.27/x
3. Step 3: Cross multiply
   5,551.74x = 7,667.70 × 3,780.27
4. Step 4: Simplify right side
   5,551.74x = 28,985,976.28
5. Step 5: Solve for x
   x = 28,985,976.28/5,551.74
6. Step 6: Final answer
   x = 5,221.06