Finding the Fourth Proportional to 13,407,109,835.05, 18,504,063,004.33 and 7,771,850,722.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,407,109,835.05 : 18,504,063,004.33 = 7,771,850,722.09 : x
2. Step 2: Convert to fraction form
   13,407,109,835.05/18,504,063,004.33 = 7,771,850,722.09/x
3. Step 3: Cross multiply
   13,407,109,835.05x = 18,504,063,004.33 × 7,771,850,722.09
4. Step 4: Simplify right side
   13,407,109,835.05x = 143,810,815,421,800,988,672
5. Step 5: Solve for x
   x = 143,810,815,421,800,988,672/13,407,109,835.05
6. Step 6: Final answer
   x = 10,726,459,109.47