Finding the Fourth Proportional to 116,480.07, 160,345.82 and 86,208.35

Step by Step Solution

1. Step 1: Write the proportion equation
   116,480.07 : 160,345.82 = 86,208.35 : x
2. Step 2: Convert to fraction form
   116,480.07/160,345.82 = 86,208.35/x
3. Step 3: Cross multiply
   116,480.07x = 160,345.82 × 86,208.35
4. Step 4: Simplify right side
   116,480.07x = 13,823,147,338.83
5. Step 5: Solve for x
   x = 13,823,147,338.83/116,480.07
6. Step 6: Final answer
   x = 118,673.93