Finding the Fourth Proportional to 111,590.22, 154,067.31 and 69,211.02

Step by Step Solution

1. Step 1: Write the proportion equation
   111,590.22 : 154,067.31 = 69,211.02 : x
2. Step 2: Convert to fraction form
   111,590.22/154,067.31 = 69,211.02/x
3. Step 3: Cross multiply
   111,590.22x = 154,067.31 × 69,211.02
4. Step 4: Simplify right side
   111,590.22x = 10,663,155,673.76
5. Step 5: Solve for x
   x = 10,663,155,673.76/111,590.22
6. Step 6: Final answer
   x = 95,556.36