Finding the Fourth Proportional to 79,995.82, 119,971.86 and 30,072.09

Step by Step Solution

1. Step 1: Write the proportion equation
   79,995.82 : 119,971.86 = 30,072.09 : x
2. Step 2: Convert to fraction form
   79,995.82/119,971.86 = 30,072.09/x
3. Step 3: Cross multiply
   79,995.82x = 119,971.86 × 30,072.09
4. Step 4: Simplify right side
   79,995.82x = 3,607,804,571.39
5. Step 5: Solve for x
   x = 3,607,804,571.39/79,995.82
6. Step 6: Final answer
   x = 45,099.91