Finding the Fourth Proportional to 181,978.74, 251,149.05 and 101,419.38

Step by Step Solution

1. Step 1: Write the proportion equation
   181,978.74 : 251,149.05 = 101,419.38 : x
2. Step 2: Convert to fraction form
   181,978.74/251,149.05 = 101,419.38/x
3. Step 3: Cross multiply
   181,978.74x = 251,149.05 × 101,419.38
4. Step 4: Simplify right side
   181,978.74x = 25,471,380,938.59
5. Step 5: Solve for x
   x = 25,471,380,938.59/181,978.74
6. Step 6: Final answer
   x = 139,968.99