Finding the Fourth Proportional to 215,068, 296,793.84 and 120,860

Step by Step Solution

1. Step 1: Write the proportion equation
   215,068 : 296,793.84 = 120,860 : x
2. Step 2: Convert to fraction form
   215,068/296,793.84 = 120,860/x
3. Step 3: Cross multiply
   215,068x = 296,793.84 × 120,860
4. Step 4: Simplify right side
   215,068x = 35,870,503,502.40
5. Step 5: Solve for x
   x = 35,870,503,502.40/215,068
6. Step 6: Final answer
   x = 166,786.80