Finding the Fourth Proportional to 111,309.72, 153,623.16 and 68,881.92

Step by Step Solution

1. Step 1: Write the proportion equation
   111,309.72 : 153,623.16 = 68,881.92 : x
2. Step 2: Convert to fraction form
   111,309.72/153,623.16 = 68,881.92/x
3. Step 3: Cross multiply
   111,309.72x = 153,623.16 × 68,881.92
4. Step 4: Simplify right side
   111,309.72x = 10,581,858,217.27
5. Step 5: Solve for x
   x = 10,581,858,217.27/111,309.72
6. Step 6: Final answer
   x = 95,066.79