Finding the Fourth Proportional to 443,118,099.88, 664,083,017.25 and 344,868,448.15

Step by Step Solution

1. Step 1: Write the proportion equation
   443,118,099.88 : 664,083,017.25 = 344,868,448.15 : x
2. Step 2: Convert to fraction form
   443,118,099.88/664,083,017.25 = 344,868,448.15/x
3. Step 3: Cross multiply
   443,118,099.88x = 664,083,017.25 × 344,868,448.15
4. Step 4: Simplify right side
   443,118,099.88x = 229,021,279,601,777,152
5. Step 5: Solve for x
   x = 229,021,279,601,777,152/443,118,099.88
6. Step 6: Final answer
   x = 516,840,272.75