Finding the Fourth Proportional to 116,379.62, 160,617.57 and 65,392.46

Step by Step Solution

1. Step 1: Write the proportion equation
   116,379.62 : 160,617.57 = 65,392.46 : x
2. Step 2: Convert to fraction form
   116,379.62/160,617.57 = 65,392.46/x
3. Step 3: Cross multiply
   116,379.62x = 160,617.57 × 65,392.46
4. Step 4: Simplify right side
   116,379.62x = 10,503,178,021.52
5. Step 5: Solve for x
   x = 10,503,178,021.52/116,379.62
6. Step 6: Final answer
   x = 90,249.29