Finding the Fourth Proportional to 339,200.09, 508,910.69 and 170,633.42

Step by Step Solution

1. Step 1: Write the proportion equation
   339,200.09 : 508,910.69 = 170,633.42 : x
2. Step 2: Convert to fraction form
   339,200.09/508,910.69 = 170,633.42/x
3. Step 3: Cross multiply
   339,200.09x = 508,910.69 × 170,633.42
4. Step 4: Simplify right side
   339,200.09x = 86,837,168,111.54
5. Step 5: Solve for x
   x = 86,837,168,111.54/339,200.09
6. Step 6: Final answer
   x = 256,005.74