Finding the Fourth Proportional to 215,280.72, 297,099.06 and 119,789.48

Step by Step Solution

1. Step 1: Write the proportion equation
   215,280.72 : 297,099.06 = 119,789.48 : x
2. Step 2: Convert to fraction form
   215,280.72/297,099.06 = 119,789.48/x
3. Step 3: Cross multiply
   215,280.72x = 297,099.06 × 119,789.48
4. Step 4: Simplify right side
   215,280.72x = 35,589,342,199.43
5. Step 5: Solve for x
   x = 35,589,342,199.43/215,280.72
6. Step 6: Final answer
   x = 165,315.98