Finding the Fourth Proportional to 359,426.72, 495,980.88 and 208,533.44

Step by Step Solution

1. Step 1: Write the proportion equation
   359,426.72 : 495,980.88 = 208,533.44 : x
2. Step 2: Convert to fraction form
   359,426.72/495,980.88 = 208,533.44/x
3. Step 3: Cross multiply
   359,426.72x = 495,980.88 × 208,533.44
4. Step 4: Simplify right side
   359,426.72x = 103,428,599,080.63
5. Step 5: Solve for x
   x = 103,428,599,080.63/359,426.72
6. Step 6: Final answer
   x = 287,759.91