Finding the Fourth Proportional to 227,978.55, 314,648.67 and 154,357.59

Step by Step Solution

1. Step 1: Write the proportion equation
   227,978.55 : 314,648.67 = 154,357.59 : x
2. Step 2: Convert to fraction form
   227,978.55/314,648.67 = 154,357.59/x
3. Step 3: Cross multiply
   227,978.55x = 314,648.67 × 154,357.59
4. Step 4: Simplify right side
   227,978.55x = 48,568,410,397.91
5. Step 5: Solve for x
   x = 48,568,410,397.91/227,978.55
6. Step 6: Final answer
   x = 213,039.39