Finding the Fourth Proportional to 227,978.05, 314,647.98 and 154,357.09

Step by Step Solution

1. Step 1: Write the proportion equation
   227,978.05 : 314,647.98 = 154,357.09 : x
2. Step 2: Convert to fraction form
   227,978.05/314,647.98 = 154,357.09/x
3. Step 3: Cross multiply
   227,978.05x = 314,647.98 × 154,357.09
4. Step 4: Simplify right side
   227,978.05x = 48,568,146,567.18
5. Step 5: Solve for x
   x = 48,568,146,567.18/227,978.05
6. Step 6: Final answer
   x = 213,038.70