Finding the Fourth Proportional to 407,661.30, 562,553.82 and 226,384.83

Step by Step Solution

1. Step 1: Write the proportion equation
   407,661.30 : 562,553.82 = 226,384.83 : x
2. Step 2: Convert to fraction form
   407,661.30/562,553.82 = 226,384.83/x
3. Step 3: Cross multiply
   407,661.30x = 562,553.82 × 226,384.83
4. Step 4: Simplify right side
   407,661.30x = 127,353,650,906.55
5. Step 5: Solve for x
   x = 127,353,650,906.55/407,661.30
6. Step 6: Final answer
   x = 312,400.64