Finding the Fourth Proportional to 116,441.63, 160,706.46 and 65,458.56

Step by Step Solution

1. Step 1: Write the proportion equation
   116,441.63 : 160,706.46 = 65,458.56 : x
2. Step 2: Convert to fraction form
   116,441.63/160,706.46 = 65,458.56/x
3. Step 3: Cross multiply
   116,441.63x = 160,706.46 × 65,458.56
4. Step 4: Simplify right side
   116,441.63x = 10,519,613,454.30
5. Step 5: Solve for x
   x = 10,519,613,454.30/116,441.63
6. Step 6: Final answer
   x = 90,342.38