Finding the Fourth Proportional to 91,628.33, 126,429.01 and 57,617.06

Step by Step Solution

1. Step 1: Write the proportion equation
   91,628.33 : 126,429.01 = 57,617.06 : x
2. Step 2: Convert to fraction form
   91,628.33/126,429.01 = 57,617.06/x
3. Step 3: Cross multiply
   91,628.33x = 126,429.01 × 57,617.06
4. Step 4: Simplify right side
   91,628.33x = 7,284,467,078.72
5. Step 5: Solve for x
   x = 7,284,467,078.72/91,628.33
6. Step 6: Final answer
   x = 79,500.17