Finding the Fourth Proportional to 200,658.31, 301,037.59 and 141,609.31

Step by Step Solution

1. Step 1: Write the proportion equation
   200,658.31 : 301,037.59 = 141,609.31 : x
2. Step 2: Convert to fraction form
   200,658.31/301,037.59 = 141,609.31/x
3. Step 3: Cross multiply
   200,658.31x = 301,037.59 × 141,609.31
4. Step 4: Simplify right side
   200,658.31x = 42,629,726,123.44
5. Step 5: Solve for x
   x = 42,629,726,123.44/200,658.31
6. Step 6: Final answer
   x = 212,449.34