Finding the Fourth Proportional to 404,715.82, 558,493.16 and 223,423.84

Step by Step Solution

1. Step 1: Write the proportion equation
   404,715.82 : 558,493.16 = 223,423.84 : x
2. Step 2: Convert to fraction form
   404,715.82/558,493.16 = 223,423.84/x
3. Step 3: Cross multiply
   404,715.82x = 558,493.16 × 223,423.84
4. Step 4: Simplify right side
   404,715.82x = 124,780,685,303.82
5. Step 5: Solve for x
   x = 124,780,685,303.82/404,715.82
6. Step 6: Final answer
   x = 308,316.80