Finding the Fourth Proportional to 404,919.38, 558,764.24 and 243,826.58

Step by Step Solution

1. Step 1: Write the proportion equation
   404,919.38 : 558,764.24 = 243,826.58 : x
2. Step 2: Convert to fraction form
   404,919.38/558,764.24 = 243,826.58/x
3. Step 3: Cross multiply
   404,919.38x = 558,764.24 × 243,826.58
4. Step 4: Simplify right side
   404,919.38x = 136,241,573,665.50
5. Step 5: Solve for x
   x = 136,241,573,665.50/404,919.38
6. Step 6: Final answer
   x = 336,465.92