Finding the Fourth Proportional to 91,003.72, 125,707.80 and 82,515.46

Step by Step Solution

1. Step 1: Write the proportion equation
   91,003.72 : 125,707.80 = 82,515.46 : x
2. Step 2: Convert to fraction form
   91,003.72/125,707.80 = 82,515.46/x
3. Step 3: Cross multiply
   91,003.72x = 125,707.80 × 82,515.46
4. Step 4: Simplify right side
   91,003.72x = 10,372,836,942.59
5. Step 5: Solve for x
   x = 10,372,836,942.59/91,003.72
6. Step 6: Final answer
   x = 113,982.56