Finding the Fourth Proportional to 7,524,940,025.99, 10,385,078,911.28 and 4,138,446,144.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,524,940,025.99 : 10,385,078,911.28 = 4,138,446,144.25 : x
2. Step 2: Convert to fraction form
   7,524,940,025.99/10,385,078,911.28 = 4,138,446,144.25/x
3. Step 3: Cross multiply
   7,524,940,025.99x = 10,385,078,911.28 × 4,138,446,144.25
4. Step 4: Simplify right side
   7,524,940,025.99x = 42,978,089,778,101,018,624
5. Step 5: Solve for x
   x = 42,978,089,778,101,018,624/7,524,940,025.99
6. Step 6: Final answer
   x = 5,711,419,576.72