Finding the Fourth Proportional to 492,665.84, 679,879.05 and 266,311.34

Step by Step Solution

1. Step 1: Write the proportion equation
   492,665.84 : 679,879.05 = 266,311.34 : x
2. Step 2: Convert to fraction form
   492,665.84/679,879.05 = 266,311.34/x
3. Step 3: Cross multiply
   492,665.84x = 679,879.05 × 266,311.34
4. Step 4: Simplify right side
   492,665.84x = 181,059,500,843.43
5. Step 5: Solve for x
   x = 181,059,500,843.43/492,665.84
6. Step 6: Final answer
   x = 367,509.75