Finding the Fourth Proportional to 160,684.08, 221,757.30 and 89,086.56

Step by Step Solution

1. Step 1: Write the proportion equation
   160,684.08 : 221,757.30 = 89,086.56 : x
2. Step 2: Convert to fraction form
   160,684.08/221,757.30 = 89,086.56/x
3. Step 3: Cross multiply
   160,684.08x = 221,757.30 × 89,086.56
4. Step 4: Simplify right side
   160,684.08x = 19,755,595,011.89
5. Step 5: Solve for x
   x = 19,755,595,011.89/160,684.08
6. Step 6: Final answer
   x = 122,946.81