Finding the Fourth Proportional to 359,148.47, 495,624.83 and 206,196.47

Step by Step Solution

1. Step 1: Write the proportion equation
   359,148.47 : 495,624.83 = 206,196.47 : x
2. Step 2: Convert to fraction form
   359,148.47/495,624.83 = 206,196.47/x
3. Step 3: Cross multiply
   359,148.47x = 495,624.83 × 206,196.47
4. Step 4: Simplify right side
   359,148.47x = 102,196,088,739.84
5. Step 5: Solve for x
   x = 102,196,088,739.84/359,148.47
6. Step 6: Final answer
   x = 284,551.09