Finding the Fourth Proportional to 91,644.58, 126,165.09 and 82,196.74

Step by Step Solution

1. Step 1: Write the proportion equation
   91,644.58 : 126,165.09 = 82,196.74 : x
2. Step 2: Convert to fraction form
   91,644.58/126,165.09 = 82,196.74/x
3. Step 3: Cross multiply
   91,644.58x = 126,165.09 × 82,196.74
4. Step 4: Simplify right side
   91,644.58x = 10,370,359,099.81
5. Step 5: Solve for x
   x = 10,370,359,099.81/91,644.58
6. Step 6: Final answer
   x = 113,158.46