Finding the Fourth Proportional to 268,111.55, 369,839.51 and 160,619.33

Step by Step Solution

1. Step 1: Write the proportion equation
   268,111.55 : 369,839.51 = 160,619.33 : x
2. Step 2: Convert to fraction form
   268,111.55/369,839.51 = 160,619.33/x
3. Step 3: Cross multiply
   268,111.55x = 369,839.51 × 160,619.33
4. Step 4: Simplify right side
   268,111.55x = 59,403,371,651.43
5. Step 5: Solve for x
   x = 59,403,371,651.43/268,111.55
6. Step 6: Final answer
   x = 221,562.15