Finding the Fourth Proportional to 111,743.10, 154,179.72 and 69,281.28

Step by Step Solution

1. Step 1: Write the proportion equation
   111,743.10 : 154,179.72 = 69,281.28 : x
2. Step 2: Convert to fraction form
   111,743.10/154,179.72 = 69,281.28/x
3. Step 3: Cross multiply
   111,743.10x = 154,179.72 × 69,281.28
4. Step 4: Simplify right side
   111,743.10x = 10,681,768,351.64
5. Step 5: Solve for x
   x = 10,681,768,351.64/111,743.10
6. Step 6: Final answer
   x = 95,592.20