Finding the Fourth Proportional to 215,819.45, 297,819.89 and 119,040.15

Step by Step Solution

1. Step 1: Write the proportion equation
   215,819.45 : 297,819.89 = 119,040.15 : x
2. Step 2: Convert to fraction form
   215,819.45/297,819.89 = 119,040.15/x
3. Step 3: Cross multiply
   215,819.45x = 297,819.89 × 119,040.15
4. Step 4: Simplify right side
   215,819.45x = 35,452,523,783.38
5. Step 5: Solve for x
   x = 35,452,523,783.38/215,819.45
6. Step 6: Final answer
   x = 164,269.36