Finding the Fourth Proportional to 213,662.27, 294,944.72 and 133,129.59

Step by Step Solution

1. Step 1: Write the proportion equation
   213,662.27 : 294,944.72 = 133,129.59 : x
2. Step 2: Convert to fraction form
   213,662.27/294,944.72 = 133,129.59/x
3. Step 3: Cross multiply
   213,662.27x = 294,944.72 × 133,129.59
4. Step 4: Simplify right side
   213,662.27x = 39,265,868,504.37
5. Step 5: Solve for x
   x = 39,265,868,504.37/213,662.27
6. Step 6: Final answer
   x = 183,775.39