Finding the Fourth Proportional to 213,678.66, 294,856.72 and 118,183.31

Step by Step Solution

1. Step 1: Write the proportion equation
   213,678.66 : 294,856.72 = 118,183.31 : x
2. Step 2: Convert to fraction form
   213,678.66/294,856.72 = 118,183.31/x
3. Step 3: Cross multiply
   213,678.66x = 294,856.72 × 118,183.31
4. Step 4: Simplify right side
   213,678.66x = 34,847,143,145.34
5. Step 5: Solve for x
   x = 34,847,143,145.34/213,678.66
6. Step 6: Final answer
   x = 163,082.00