Finding the Fourth Proportional to 404,419.93, 558,073.57 and 223,131.84

Step by Step Solution

1. Step 1: Write the proportion equation
   404,419.93 : 558,073.57 = 223,131.84 : x
2. Step 2: Convert to fraction form
   404,419.93/558,073.57 = 223,131.84/x
3. Step 3: Cross multiply
   404,419.93x = 558,073.57 × 223,131.84
4. Step 4: Simplify right side
   404,419.93x = 124,523,982,529.47
5. Step 5: Solve for x
   x = 124,523,982,529.47/404,419.93
6. Step 6: Final answer
   x = 307,907.63