Finding the Fourth Proportional to 636,478,978,514.56, 878,361,779,119.68 and 347,462,648,755.84

Step by Step Solution

1. Step 1: Write the proportion equation
   636,478,978,514.56 : 878,361,779,119.68 = 347,462,648,755.84 : x
2. Step 2: Convert to fraction form
   636,478,978,514.56/878,361,779,119.68 = 347,462,648,755.84/x
3. Step 3: Cross multiply
   636,478,978,514.56x = 878,361,779,119.68 × 347,462,648,755.84
4. Step 4: Simplify right side
   636,478,978,514.56x = 305,197,910,338,816,108,920,832
5. Step 5: Solve for x
   x = 305,197,910,338,816,108,920,832/636,478,978,514.56
6. Step 6: Final answer
   x = 479,509,804,158.97