Finding the Fourth Proportional to 404,659.56, 558,427.04 and 223,371.55

Step by Step Solution

1. Step 1: Write the proportion equation
   404,659.56 : 558,427.04 = 223,371.55 : x
2. Step 2: Convert to fraction form
   404,659.56/558,427.04 = 223,371.55/x
3. Step 3: Cross multiply
   404,659.56x = 558,427.04 × 223,371.55
4. Step 4: Simplify right side
   404,659.56x = 124,736,711,253.01
5. Step 5: Solve for x
   x = 124,736,711,253.01/404,659.56
6. Step 6: Final answer
   x = 308,251.00