Finding the Fourth Proportional to 83,844.42, 115,728.04 and 49,419.21

Step by Step Solution

1. Step 1: Write the proportion equation
   83,844.42 : 115,728.04 = 49,419.21 : x
2. Step 2: Convert to fraction form
   83,844.42/115,728.04 = 49,419.21/x
3. Step 3: Cross multiply
   83,844.42x = 115,728.04 × 49,419.21
4. Step 4: Simplify right side
   83,844.42x = 5,719,188,311.65
5. Step 5: Solve for x
   x = 5,719,188,311.65/83,844.42
6. Step 6: Final answer
   x = 68,211.91