Finding the Fourth Proportional to 641,591,100.91, 885,243,952.38 and 363,132,624.61

Step by Step Solution

1. Step 1: Write the proportion equation
   641,591,100.91 : 885,243,952.38 = 363,132,624.61 : x
2. Step 2: Convert to fraction form
   641,591,100.91/885,243,952.38 = 363,132,624.61/x
3. Step 3: Cross multiply
   641,591,100.91x = 885,243,952.38 × 363,132,624.61
4. Step 4: Simplify right side
   641,591,100.91x = 321,460,959,847,879,296
5. Step 5: Solve for x
   x = 321,460,959,847,879,296/641,591,100.91
6. Step 6: Final answer
   x = 501,037,123.79