Finding the Fourth Proportional to 91,931.22, 126,765.81 and 83,883.06

Step by Step Solution

1. Step 1: Write the proportion equation
   91,931.22 : 126,765.81 = 83,883.06 : x
2. Step 2: Convert to fraction form
   91,931.22/126,765.81 = 83,883.06/x
3. Step 3: Cross multiply
   91,931.22x = 126,765.81 × 83,883.06
4. Step 4: Simplify right side
   91,931.22x = 10,633,504,046.18
5. Step 5: Solve for x
   x = 10,633,504,046.18/91,931.22
6. Step 6: Final answer
   x = 115,668.04