Finding the Fourth Proportional to 119,978.69, 179,949.53 and 40,018.05

Step by Step Solution

1. Step 1: Write the proportion equation
   119,978.69 : 179,949.53 = 40,018.05 : x
2. Step 2: Convert to fraction form
   119,978.69/179,949.53 = 40,018.05/x
3. Step 3: Cross multiply
   119,978.69x = 179,949.53 × 40,018.05
4. Step 4: Simplify right side
   119,978.69x = 7,201,229,389.06
5. Step 5: Solve for x
   x = 7,201,229,389.06/119,978.69
6. Step 6: Final answer
   x = 60,020.91