Finding the Fourth Proportional to 558,320.10, 770,443.83 and 303,665.82

Step by Step Solution

1. Step 1: Write the proportion equation
   558,320.10 : 770,443.83 = 303,665.82 : x
2. Step 2: Convert to fraction form
   558,320.10/770,443.83 = 303,665.82/x
3. Step 3: Cross multiply
   558,320.10x = 770,443.83 × 303,665.82
4. Step 4: Simplify right side
   558,320.10x = 233,957,457,400.89
5. Step 5: Solve for x
   x = 233,957,457,400.89/558,320.10
6. Step 6: Final answer
   x = 419,038.21