Finding the Fourth Proportional to 268,061.25, 369,928.76 and 145,553.56

Step by Step Solution

1. Step 1: Write the proportion equation
   268,061.25 : 369,928.76 = 145,553.56 : x
2. Step 2: Convert to fraction form
   268,061.25/369,928.76 = 145,553.56/x
3. Step 3: Cross multiply
   268,061.25x = 369,928.76 × 145,553.56
4. Step 4: Simplify right side
   268,061.25x = 53,844,447,964.39
5. Step 5: Solve for x
   x = 53,844,447,964.39/268,061.25
6. Step 6: Final answer
   x = 200,866.21