Finding the Fourth Proportional to 83,816.43, 115,659.66 and 49,355.69

Step by Step Solution

1. Step 1: Write the proportion equation
   83,816.43 : 115,659.66 = 49,355.69 : x
2. Step 2: Convert to fraction form
   83,816.43/115,659.66 = 49,355.69/x
3. Step 3: Cross multiply
   83,816.43x = 115,659.66 × 49,355.69
4. Step 4: Simplify right side
   83,816.43x = 5,708,461,931.25
5. Step 5: Solve for x
   x = 5,708,461,931.25/83,816.43
6. Step 6: Final answer
   x = 68,106.72