Finding the Fourth Proportional to 116,609.48, 160,919.13 and 65,622.15

Step by Step Solution

1. Step 1: Write the proportion equation
   116,609.48 : 160,919.13 = 65,622.15 : x
2. Step 2: Convert to fraction form
   116,609.48/160,919.13 = 65,622.15/x
3. Step 3: Cross multiply
   116,609.48x = 160,919.13 × 65,622.15
4. Step 4: Simplify right side
   116,609.48x = 10,559,859,286.73
5. Step 5: Solve for x
   x = 10,559,859,286.73/116,609.48
6. Step 6: Final answer
   x = 90,557.47