Finding the Fourth Proportional to 592,456,456.63, 818,139,486.05 and 443,519,008.30

Step by Step Solution

1. Step 1: Write the proportion equation
   592,456,456.63 : 818,139,486.05 = 443,519,008.30 : x
2. Step 2: Convert to fraction form
   592,456,456.63/818,139,486.05 = 443,519,008.30/x
3. Step 3: Cross multiply
   592,456,456.63x = 818,139,486.05 × 443,519,008.30
4. Step 4: Simplify right side
   592,456,456.63x = 362,860,413,503,967,680
5. Step 5: Solve for x
   x = 362,860,413,503,967,680/592,456,456.63
6. Step 6: Final answer
   x = 612,467,649.64