Finding the Fourth Proportional to 568,667.03, 853,120.83 and 213,684.12

Step by Step Solution

1. Step 1: Write the proportion equation
   568,667.03 : 853,120.83 = 213,684.12 : x
2. Step 2: Convert to fraction form
   568,667.03/853,120.83 = 213,684.12/x
3. Step 3: Cross multiply
   568,667.03x = 853,120.83 × 213,684.12
4. Step 4: Simplify right side
   568,667.03x = 182,298,373,812.22
5. Step 5: Solve for x
   x = 182,298,373,812.22/568,667.03
6. Step 6: Final answer
   x = 320,571.38