Finding the Fourth Proportional to 322,171,778.72, 444,582,713.76 and 188,222,111.12

Step by Step Solution

1. Step 1: Write the proportion equation
   322,171,778.72 : 444,582,713.76 = 188,222,111.12 : x
2. Step 2: Convert to fraction form
   322,171,778.72/444,582,713.76 = 188,222,111.12/x
3. Step 3: Cross multiply
   322,171,778.72x = 444,582,713.76 × 188,222,111.12
4. Step 4: Simplify right side
   322,171,778.72x = 83,680,296,951,365,872
5. Step 5: Solve for x
   x = 83,680,296,951,365,872/322,171,778.72
6. Step 6: Final answer
   x = 259,738,134.99