Finding the Fourth Proportional to 215,954.05, 298,014.55 and 119,158.78

Step by Step Solution

1. Step 1: Write the proportion equation
   215,954.05 : 298,014.55 = 119,158.78 : x
2. Step 2: Convert to fraction form
   215,954.05/298,014.55 = 119,158.78/x
3. Step 3: Cross multiply
   215,954.05x = 298,014.55 × 119,158.78
4. Step 4: Simplify right side
   215,954.05x = 35,511,050,200.25
5. Step 5: Solve for x
   x = 35,511,050,200.25/215,954.05
6. Step 6: Final answer
   x = 164,437.99