Finding the Fourth Proportional to 448,955.52, 619,571.69 and 245,019.56

Step by Step Solution

1. Step 1: Write the proportion equation
   448,955.52 : 619,571.69 = 245,019.56 : x
2. Step 2: Convert to fraction form
   448,955.52/619,571.69 = 245,019.56/x
3. Step 3: Cross multiply
   448,955.52x = 619,571.69 × 245,019.56
4. Step 4: Simplify right side
   448,955.52x = 151,807,178,549.30
5. Step 5: Solve for x
   x = 151,807,178,549.30/448,955.52
6. Step 6: Final answer
   x = 338,134.12