Finding the Fourth Proportional to 115,995.30, 160,086.84 and 65,021.82

Step by Step Solution

1. Step 1: Write the proportion equation
   115,995.30 : 160,086.84 = 65,021.82 : x
2. Step 2: Convert to fraction form
   115,995.30/160,086.84 = 65,021.82/x
3. Step 3: Cross multiply
   115,995.30x = 160,086.84 × 65,021.82
4. Step 4: Simplify right side
   115,995.30x = 10,409,137,694.85
5. Step 5: Solve for x
   x = 10,409,137,694.85/115,995.30
6. Step 6: Final answer
   x = 89,737.58