Finding the Fourth Proportional to 142,021,362.72, 195,987,571.74 and 79,298,436

Step by Step Solution

1. Step 1: Write the proportion equation
   142,021,362.72 : 195,987,571.74 = 79,298,436 : x
2. Step 2: Convert to fraction form
   142,021,362.72/195,987,571.74 = 79,298,436/x
3. Step 3: Cross multiply
   142,021,362.72x = 195,987,571.74 × 79,298,436
4. Step 4: Simplify right side
   142,021,362.72x = 15,541,507,914,419,800
5. Step 5: Solve for x
   x = 15,541,507,914,419,800/142,021,362.72
6. Step 6: Final answer
   x = 109,430,775.88