Finding the Fourth Proportional to 111,708.78, 154,289.73 and 73,917.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,708.78 : 154,289.73 = 73,917.42 : x
2. Step 2: Convert to fraction form
   111,708.78/154,289.73 = 73,917.42/x
3. Step 3: Cross multiply
   111,708.78x = 154,289.73 × 73,917.42
4. Step 4: Simplify right side
   111,708.78x = 11,404,698,774.10
5. Step 5: Solve for x
   x = 11,404,698,774.10/111,708.78
6. Step 6: Final answer
   x = 102,093.13