Finding the Fourth Proportional to 223,816.72, 308,868.24 and 123,214.72

Step by Step Solution

1. Step 1: Write the proportion equation
   223,816.72 : 308,868.24 = 123,214.72 : x
2. Step 2: Convert to fraction form
   223,816.72/308,868.24 = 123,214.72/x
3. Step 3: Cross multiply
   223,816.72x = 308,868.24 × 123,214.72
4. Step 4: Simplify right side
   223,816.72x = 38,057,113,708.49
5. Step 5: Solve for x
   x = 38,057,113,708.49/223,816.72
6. Step 6: Final answer
   x = 170,036.96