Finding the Fourth Proportional to 300,068.97, 414,245.76 and 231,931.96

Step by Step Solution

1. Step 1: Write the proportion equation
   300,068.97 : 414,245.76 = 231,931.96 : x
2. Step 2: Convert to fraction form
   300,068.97/414,245.76 = 231,931.96/x
3. Step 3: Cross multiply
   300,068.97x = 414,245.76 × 231,931.96
4. Step 4: Simplify right side
   300,068.97x = 96,076,830,686.55
5. Step 5: Solve for x
   x = 96,076,830,686.55/300,068.97
6. Step 6: Final answer
   x = 320,182.49