Finding the Fourth Proportional to 256,100.70, 353,438.55 and 141,401.46

Step by Step Solution

1. Step 1: Write the proportion equation
   256,100.70 : 353,438.55 = 141,401.46 : x
2. Step 2: Convert to fraction form
   256,100.70/353,438.55 = 141,401.46/x
3. Step 3: Cross multiply
   256,100.70x = 353,438.55 × 141,401.46
4. Step 4: Simplify right side
   256,100.70x = 49,976,726,990.28
5. Step 5: Solve for x
   x = 49,976,726,990.28/256,100.70
6. Step 6: Final answer
   x = 195,144.83