Finding the Fourth Proportional to 361,845.98, 499,020.55 and 225,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,845.98 : 499,020.55 = 225,892.50 : x
2. Step 2: Convert to fraction form
   361,845.98/499,020.55 = 225,892.50/x
3. Step 3: Cross multiply
   361,845.98x = 499,020.55 × 225,892.50
4. Step 4: Simplify right side
   361,845.98x = 112,724,997,154.82
5. Step 5: Solve for x
   x = 112,724,997,154.82/361,845.98
6. Step 6: Final answer
   x = 311,527.56