Finding the Fourth Proportional to 81,769.35, 112,842.72 and 49,503.54

Step by Step Solution

1. Step 1: Write the proportion equation
   81,769.35 : 112,842.72 = 49,503.54 : x
2. Step 2: Convert to fraction form
   81,769.35/112,842.72 = 49,503.54/x
3. Step 3: Cross multiply
   81,769.35x = 112,842.72 × 49,503.54
4. Step 4: Simplify right side
   81,769.35x = 5,586,114,103.23
5. Step 5: Solve for x
   x = 5,586,114,103.23/81,769.35
6. Step 6: Final answer
   x = 68,315.50