Finding the Fourth Proportional to 495,049,300.75, 682,485,384.72 and 394,917,587.76

Step by Step Solution

1. Step 1: Write the proportion equation
   495,049,300.75 : 682,485,384.72 = 394,917,587.76 : x
2. Step 2: Convert to fraction form
   495,049,300.75/682,485,384.72 = 394,917,587.76/x
3. Step 3: Cross multiply
   495,049,300.75x = 682,485,384.72 × 394,917,587.76
4. Step 4: Simplify right side
   495,049,300.75x = 269,525,481,815,077,952
5. Step 5: Solve for x
   x = 269,525,481,815,077,952/495,049,300.75
6. Step 6: Final answer
   x = 544,441,697.84