Finding the Fourth Proportional to 140,900.10, 211,544.55 and 111,351.30

Step by Step Solution

1. Step 1: Write the proportion equation
   140,900.10 : 211,544.55 = 111,351.30 : x
2. Step 2: Convert to fraction form
   140,900.10/211,544.55 = 111,351.30/x
3. Step 3: Cross multiply
   140,900.10x = 211,544.55 × 111,351.30
4. Step 4: Simplify right side
   140,900.10x = 23,555,760,650.42
5. Step 5: Solve for x
   x = 23,555,760,650.42/140,900.10
6. Step 6: Final answer
   x = 167,180.58