Finding the Fourth Proportional to 81,109.92, 111,819.04 and 69,898.84

Step by Step Solution

1. Step 1: Write the proportion equation
   81,109.92 : 111,819.04 = 69,898.84 : x
2. Step 2: Convert to fraction form
   81,109.92/111,819.04 = 69,898.84/x
3. Step 3: Cross multiply
   81,109.92x = 111,819.04 × 69,898.84
4. Step 4: Simplify right side
   81,109.92x = 7,816,021,185.91
5. Step 5: Solve for x
   x = 7,816,021,185.91/81,109.92
6. Step 6: Final answer
   x = 96,363.32