Finding the Fourth Proportional to 116,494.64, 160,760.79 and 65,507.42

Step by Step Solution

1. Step 1: Write the proportion equation
   116,494.64 : 160,760.79 = 65,507.42 : x
2. Step 2: Convert to fraction form
   116,494.64/160,760.79 = 65,507.42/x
3. Step 3: Cross multiply
   116,494.64x = 160,760.79 × 65,507.42
4. Step 4: Simplify right side
   116,494.64x = 10,531,023,786.26
5. Step 5: Solve for x
   x = 10,531,023,786.26/116,494.64
6. Step 6: Final answer
   x = 90,399.22