Finding the Fourth Proportional to 567,928.50, 851,644.16 and 212,693.42

Step by Step Solution

1. Step 1: Write the proportion equation
   567,928.50 : 851,644.16 = 212,693.42 : x
2. Step 2: Convert to fraction form
   567,928.50/851,644.16 = 212,693.42/x
3. Step 3: Cross multiply
   567,928.50x = 851,644.16 × 212,693.42
4. Step 4: Simplify right side
   567,928.50x = 181,139,109,013.43
5. Step 5: Solve for x
   x = 181,139,109,013.43/567,928.50
6. Step 6: Final answer
   x = 318,947.03