Finding the Fourth Proportional to 139,022,150.32, 208,552,164.20 and 80,757,169.84

Step by Step Solution

1. Step 1: Write the proportion equation
   139,022,150.32 : 208,552,164.20 = 80,757,169.84 : x
2. Step 2: Convert to fraction form
   139,022,150.32/208,552,164.20 = 80,757,169.84/x
3. Step 3: Cross multiply
   139,022,150.32x = 208,552,164.20 × 80,757,169.84
4. Step 4: Simplify right side
   139,022,150.32x = 16,842,082,544,798,968
5. Step 5: Solve for x
   x = 16,842,082,544,798,968/139,022,150.32
6. Step 6: Final answer
   x = 121,146,756.15