Finding the Fourth Proportional to 111,149.78, 153,344.82 and 72,930.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,149.78 : 153,344.82 = 72,930.42 : x
2. Step 2: Convert to fraction form
   111,149.78/153,344.82 = 72,930.42/x
3. Step 3: Cross multiply
   111,149.78x = 153,344.82 × 72,930.42
4. Step 4: Simplify right side
   111,149.78x = 11,183,502,410.27
5. Step 5: Solve for x
   x = 11,183,502,410.27/111,149.78
6. Step 6: Final answer
   x = 100,616.51