Finding the Fourth Proportional to 116,675.69, 160,964.55 and 86,535.18

Step by Step Solution

1. Step 1: Write the proportion equation
   116,675.69 : 160,964.55 = 86,535.18 : x
2. Step 2: Convert to fraction form
   116,675.69/160,964.55 = 86,535.18/x
3. Step 3: Cross multiply
   116,675.69x = 160,964.55 × 86,535.18
4. Step 4: Simplify right side
   116,675.69x = 13,929,096,307.87
5. Step 5: Solve for x
   x = 13,929,096,307.87/116,675.69
6. Step 6: Final answer
   x = 119,383.03