Finding the Fourth Proportional to 227,978.58, 314,648.72 and 154,357.62

Step by Step Solution

1. Step 1: Write the proportion equation
   227,978.58 : 314,648.72 = 154,357.62 : x
2. Step 2: Convert to fraction form
   227,978.58/314,648.72 = 154,357.62/x
3. Step 3: Cross multiply
   227,978.58x = 314,648.72 × 154,357.62
4. Step 4: Simplify right side
   227,978.58x = 48,568,426,783.46
5. Step 5: Solve for x
   x = 48,568,426,783.46/227,978.58
6. Step 6: Final answer
   x = 213,039.43