Finding the Fourth Proportional to 404,413, 558,089.94 and 225,565

Step by Step Solution

1. Step 1: Write the proportion equation
   404,413 : 558,089.94 = 225,565 : x
2. Step 2: Convert to fraction form
   404,413/558,089.94 = 225,565/x
3. Step 3: Cross multiply
   404,413x = 558,089.94 × 225,565
4. Step 4: Simplify right side
   404,413x = 125,885,557,316.10
5. Step 5: Solve for x
   x = 125,885,557,316.10/404,413
6. Step 6: Final answer
   x = 311,279.70