Finding the Fourth Proportional to 490,300.27, 734,770 and 223,408.51

Step by Step Solution

1. Step 1: Write the proportion equation
   490,300.27 : 734,770 = 223,408.51 : x
2. Step 2: Convert to fraction form
   490,300.27/734,770 = 223,408.51/x
3. Step 3: Cross multiply
   490,300.27x = 734,770 × 223,408.51
4. Step 4: Simplify right side
   490,300.27x = 164,153,870,892.70
5. Step 5: Solve for x
   x = 164,153,870,892.70/490,300.27
6. Step 6: Final answer
   x = 334,802.73