Finding the Fourth Proportional to 83,395.50, 115,085.79 and 49,869.42

Step by Step Solution

1. Step 1: Write the proportion equation
   83,395.50 : 115,085.79 = 49,869.42 : x
2. Step 2: Convert to fraction form
   83,395.50/115,085.79 = 49,869.42/x
3. Step 3: Cross multiply
   83,395.50x = 115,085.79 × 49,869.42
4. Step 4: Simplify right side
   83,395.50x = 5,739,261,597.54
5. Step 5: Solve for x
   x = 5,739,261,597.54/83,395.50
6. Step 6: Final answer
   x = 68,819.80