Finding the Fourth Proportional to 443,128,659.39, 664,098,791.99 and 344,878,996.59

Step by Step Solution

1. Step 1: Write the proportion equation
   443,128,659.39 : 664,098,791.99 = 344,878,996.59 : x
2. Step 2: Convert to fraction form
   443,128,659.39/664,098,791.99 = 344,878,996.59/x
3. Step 3: Cross multiply
   443,128,659.39x = 664,098,791.99 × 344,878,996.59
4. Step 4: Simplify right side
   443,128,659.39x = 229,033,725,016,417,920
5. Step 5: Solve for x
   x = 229,033,725,016,417,920/443,128,659.39
6. Step 6: Final answer
   x = 516,856,042.06