Finding the Fourth Proportional to 213,404.09, 294,155.56 and 144,471.83

Step by Step Solution

1. Step 1: Write the proportion equation
   213,404.09 : 294,155.56 = 144,471.83 : x
2. Step 2: Convert to fraction form
   213,404.09/294,155.56 = 144,471.83/x
3. Step 3: Cross multiply
   213,404.09x = 294,155.56 × 144,471.83
4. Step 4: Simplify right side
   213,404.09x = 42,497,192,057.87
5. Step 5: Solve for x
   x = 42,497,192,057.87/213,404.09
6. Step 6: Final answer
   x = 199,139.54