Finding the Fourth Proportional to 308,084.10, 461,348.55 and 228,768.90

Step by Step Solution

1. Step 1: Write the proportion equation
   308,084.10 : 461,348.55 = 228,768.90 : x
2. Step 2: Convert to fraction form
   308,084.10/461,348.55 = 228,768.90/x
3. Step 3: Cross multiply
   308,084.10x = 461,348.55 × 228,768.90
4. Step 4: Simplify right side
   308,084.10x = 105,542,200,300.10
5. Step 5: Solve for x
   x = 105,542,200,300.10/308,084.10
6. Step 6: Final answer
   x = 342,575.94