Finding the Fourth Proportional to 407,667.33, 562,562.10 and 226,390.82

Step by Step Solution

1. Step 1: Write the proportion equation
   407,667.33 : 562,562.10 = 226,390.82 : x
2. Step 2: Convert to fraction form
   407,667.33/562,562.10 = 226,390.82/x
3. Step 3: Cross multiply
   407,667.33x = 562,562.10 × 226,390.82
4. Step 4: Simplify right side
   407,667.33x = 127,358,892,307.11
5. Step 5: Solve for x
   x = 127,358,892,307.11/407,667.33
6. Step 6: Final answer
   x = 312,408.88