Finding the Fourth Proportional to 363,752.82, 501,978.98 and 210,879.61

Step by Step Solution

1. Step 1: Write the proportion equation
   363,752.82 : 501,978.98 = 210,879.61 : x
2. Step 2: Convert to fraction form
   363,752.82/501,978.98 = 210,879.61/x
3. Step 3: Cross multiply
   363,752.82x = 501,978.98 × 210,879.61
4. Step 4: Simplify right side
   363,752.82x = 105,857,131,530.60
5. Step 5: Solve for x
   x = 105,857,131,530.60/363,752.82
6. Step 6: Final answer
   x = 291,013.91