Finding the Fourth Proportional to 215,109.10, 296,846.81 and 119,613.75

Step by Step Solution

1. Step 1: Write the proportion equation
   215,109.10 : 296,846.81 = 119,613.75 : x
2. Step 2: Convert to fraction form
   215,109.10/296,846.81 = 119,613.75/x
3. Step 3: Cross multiply
   215,109.10x = 296,846.81 × 119,613.75
4. Step 4: Simplify right side
   215,109.10x = 35,506,958,856.94
5. Step 5: Solve for x
   x = 35,506,958,856.94/215,109.10
6. Step 6: Final answer
   x = 165,064.88