Finding the Fourth Proportional to 111,743.92, 154,212.15 and 69,316.12

Step by Step Solution

1. Step 1: Write the proportion equation
   111,743.92 : 154,212.15 = 69,316.12 : x
2. Step 2: Convert to fraction form
   111,743.92/154,212.15 = 69,316.12/x
3. Step 3: Cross multiply
   111,743.92x = 154,212.15 × 69,316.12
4. Step 4: Simplify right side
   111,743.92x = 10,689,387,894.86
5. Step 5: Solve for x
   x = 10,689,387,894.86/111,743.92
6. Step 6: Final answer
   x = 95,659.68