Finding the Fourth Proportional to 8,041,490,805.20, 12,063,369,948.60 and 2,520,173,109.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,041,490,805.20 : 12,063,369,948.60 = 2,520,173,109.20 : x
2. Step 2: Convert to fraction form
   8,041,490,805.20/12,063,369,948.60 = 2,520,173,109.20/x
3. Step 3: Cross multiply
   8,041,490,805.20x = 12,063,369,948.60 × 2,520,173,109.20
4. Step 4: Simplify right side
   8,041,490,805.20x = 30,401,780,550,793,105,408
5. Step 5: Solve for x
   x = 30,401,780,550,793,105,408/8,041,490,805.20
6. Step 6: Final answer
   x = 3,780,614,973.92