Finding the Fourth Proportional to 352,086.24, 485,865.89 and 208,760.52

Step by Step Solution

1. Step 1: Write the proportion equation
   352,086.24 : 485,865.89 = 208,760.52 : x
2. Step 2: Convert to fraction form
   352,086.24/485,865.89 = 208,760.52/x
3. Step 3: Cross multiply
   352,086.24x = 485,865.89 × 208,760.52
4. Step 4: Simplify right side
   352,086.24x = 101,429,616,368.56
5. Step 5: Solve for x
   x = 101,429,616,368.56/352,086.24
6. Step 6: Final answer
   x = 288,081.74