Finding the Fourth Proportional to 308,060.34, 461,892.78 and 128,270.34

Step by Step Solution

1. Step 1: Write the proportion equation
   308,060.34 : 461,892.78 = 128,270.34 : x
2. Step 2: Convert to fraction form
   308,060.34/461,892.78 = 128,270.34/x
3. Step 3: Cross multiply
   308,060.34x = 461,892.78 × 128,270.34
4. Step 4: Simplify right side
   308,060.34x = 59,247,143,934.15
5. Step 5: Solve for x
   x = 59,247,143,934.15/308,060.34
6. Step 6: Final answer
   x = 192,323.18