Finding the Fourth Proportional to 111,910.42, 167,640.78 and 55,580.14

Step by Step Solution

1. Step 1: Write the proportion equation
   111,910.42 : 167,640.78 = 55,580.14 : x
2. Step 2: Convert to fraction form
   111,910.42/167,640.78 = 55,580.14/x
3. Step 3: Cross multiply
   111,910.42x = 167,640.78 × 55,580.14
4. Step 4: Simplify right side
   111,910.42x = 9,317,498,022.11
5. Step 5: Solve for x
   x = 9,317,498,022.11/111,910.42
6. Step 6: Final answer
   x = 83,258.54