Finding the Fourth Proportional to 1,353,061,822.67, 2,029,596,517.56 and 420,521,031.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353,061,822.67 : 2,029,596,517.56 = 420,521,031.96 : x
2. Step 2: Convert to fraction form
   1,353,061,822.67/2,029,596,517.56 = 420,521,031.96/x
3. Step 3: Cross multiply
   1,353,061,822.67x = 2,029,596,517.56 × 420,521,031.96
4. Step 4: Simplify right side
   1,353,061,822.67x = 853,488,022,026,753,408
5. Step 5: Solve for x
   x = 853,488,022,026,753,408/1,353,061,822.67
6. Step 6: Final answer
   x = 630,782,723.84