Finding the Fourth Proportional to 120,218,751,644.18, 165,917,182,730.37 and 72,695,511,782.42

Step by Step Solution

1. Step 1: Write the proportion equation
   120,218,751,644.18 : 165,917,182,730.37 = 72,695,511,782.42 : x
2. Step 2: Convert to fraction form
   120,218,751,644.18/165,917,182,730.37 = 72,695,511,782.42/x
3. Step 3: Cross multiply
   120,218,751,644.18x = 165,917,182,730.37 × 72,695,511,782.42
4. Step 4: Simplify right side
   120,218,751,644.18x = 12,061,434,512,081,544,019,968
5. Step 5: Solve for x
   x = 12,061,434,512,081,544,019,968/120,218,751,644.18
6. Step 6: Final answer
   x = 100,329,061,374.56