Finding the Fourth Proportional to 5,667.42, 7,821.11 and 3,149.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,667.42 : 7,821.11 = 3,149.69 : x
2. Step 2: Convert to fraction form
   5,667.42/7,821.11 = 3,149.69/x
3. Step 3: Cross multiply
   5,667.42x = 7,821.11 × 3,149.69
4. Step 4: Simplify right side
   5,667.42x = 24,634,023.01
5. Step 5: Solve for x
   x = 24,634,023.01/5,667.42
6. Step 6: Final answer
   x = 4,346.60