Finding the Fourth Proportional to 151,799.37, 227,394.49 and 139,398.27

Step by Step Solution

1. Step 1: Write the proportion equation
   151,799.37 : 227,394.49 = 139,398.27 : x
2. Step 2: Convert to fraction form
   151,799.37/227,394.49 = 139,398.27/x
3. Step 3: Cross multiply
   151,799.37x = 227,394.49 × 139,398.27
4. Step 4: Simplify right side
   151,799.37x = 31,698,398,513.53
5. Step 5: Solve for x
   x = 31,698,398,513.53/151,799.37
6. Step 6: Final answer
   x = 208,817.72