Finding the Fourth Proportional to 656,976,710.48, 906,628,144.28 and 359,620,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   656,976,710.48 : 906,628,144.28 = 359,620,648.72 : x
2. Step 2: Convert to fraction form
   656,976,710.48/906,628,144.28 = 359,620,648.72/x
3. Step 3: Cross multiply
   656,976,710.48x = 906,628,144.28 × 359,620,648.72
4. Step 4: Simplify right side
   656,976,710.48x = 326,042,201,393,783,360
5. Step 5: Solve for x
   x = 326,042,201,393,783,360/656,976,710.48
6. Step 6: Final answer
   x = 496,276,650.59