Finding the Fourth Proportional to 91,196.82, 125,790.17 and 79,239.60

Step by Step Solution

1. Step 1: Write the proportion equation
   91,196.82 : 125,790.17 = 79,239.60 : x
2. Step 2: Convert to fraction form
   91,196.82/125,790.17 = 79,239.60/x
3. Step 3: Cross multiply
   91,196.82x = 125,790.17 × 79,239.60
4. Step 4: Simplify right side
   91,196.82x = 9,967,562,358.53
5. Step 5: Solve for x
   x = 9,967,562,358.53/91,196.82
6. Step 6: Final answer
   x = 109,297.26