Finding the Fourth Proportional to 275,204.43, 379,782.72 and 160,561.89

Step by Step Solution

1. Step 1: Write the proportion equation
   275,204.43 : 379,782.72 = 160,561.89 : x
2. Step 2: Convert to fraction form
   275,204.43/379,782.72 = 160,561.89/x
3. Step 3: Cross multiply
   275,204.43x = 379,782.72 × 160,561.89
4. Step 4: Simplify right side
   275,204.43x = 60,978,631,312.54
5. Step 5: Solve for x
   x = 60,978,631,312.54/275,204.43
6. Step 6: Final answer
   x = 221,575.76