Finding the Fourth Proportional to 111,410.72, 167,143.76 and 55,277.18

Step by Step Solution

1. Step 1: Write the proportion equation
   111,410.72 : 167,143.76 = 55,277.18 : x
2. Step 2: Convert to fraction form
   111,410.72/167,143.76 = 55,277.18/x
3. Step 3: Cross multiply
   111,410.72x = 167,143.76 × 55,277.18
4. Step 4: Simplify right side
   111,410.72x = 9,239,235,431.01
5. Step 5: Solve for x
   x = 9,239,235,431.01/111,410.72
6. Step 6: Final answer
   x = 82,929.50