Finding the Fourth Proportional to 304,821.69, 457,243.46 and 105,148.59

Step by Step Solution

1. Step 1: Write the proportion equation
   304,821.69 : 457,243.46 = 105,148.59 : x
2. Step 2: Convert to fraction form
   304,821.69/457,243.46 = 105,148.59/x
3. Step 3: Cross multiply
   304,821.69x = 457,243.46 × 105,148.59
4. Step 4: Simplify right side
   304,821.69x = 48,078,505,105.72
5. Step 5: Solve for x
   x = 48,078,505,105.72/304,821.69
6. Step 6: Final answer
   x = 157,726.65