Finding the Fourth Proportional to 374,499.83, 516,743.33 and 221,544.47

Step by Step Solution

1. Step 1: Write the proportion equation
   374,499.83 : 516,743.33 = 221,544.47 : x
2. Step 2: Convert to fraction form
   374,499.83/516,743.33 = 221,544.47/x
3. Step 3: Cross multiply
   374,499.83x = 516,743.33 × 221,544.47
4. Step 4: Simplify right side
   374,499.83x = 114,481,626,629.17
5. Step 5: Solve for x
   x = 114,481,626,629.17/374,499.83
6. Step 6: Final answer
   x = 305,692.07