Finding the Fourth Proportional to 213,196.75, 294,203.80 and 116,398.83

Step by Step Solution

1. Step 1: Write the proportion equation
   213,196.75 : 294,203.80 = 116,398.83 : x
2. Step 2: Convert to fraction form
   213,196.75/294,203.80 = 116,398.83/x
3. Step 3: Cross multiply
   213,196.75x = 294,203.80 × 116,398.83
4. Step 4: Simplify right side
   213,196.75x = 34,244,978,101.55
5. Step 5: Solve for x
   x = 34,244,978,101.55/213,196.75
6. Step 6: Final answer
   x = 160,626.17