Finding the Fourth Proportional to 616,758.72, 851,269.28 and 401,524

Step by Step Solution

1. Step 1: Write the proportion equation
   616,758.72 : 851,269.28 = 401,524 : x
2. Step 2: Convert to fraction form
   616,758.72/851,269.28 = 401,524/x
3. Step 3: Cross multiply
   616,758.72x = 851,269.28 × 401,524
4. Step 4: Simplify right side
   616,758.72x = 341,805,046,382.72
5. Step 5: Solve for x
   x = 341,805,046,382.72/616,758.72
6. Step 6: Final answer
   x = 554,195.73