Finding the Fourth Proportional to 5,667.45, 7,821.57 and 3,149.51

Step by Step Solution

1. Step 1: Write the proportion equation
   5,667.45 : 7,821.57 = 3,149.51 : x
2. Step 2: Convert to fraction form
   5,667.45/7,821.57 = 3,149.51/x
3. Step 3: Cross multiply
   5,667.45x = 7,821.57 × 3,149.51
4. Step 4: Simplify right side
   5,667.45x = 24,634,112.93
5. Step 5: Solve for x
   x = 24,634,112.93/5,667.45
6. Step 6: Final answer
   x = 4,346.60