Finding the Fourth Proportional to 91,786.45, 137,729.85 and 35,628.79

Step by Step Solution

1. Step 1: Write the proportion equation
   91,786.45 : 137,729.85 = 35,628.79 : x
2. Step 2: Convert to fraction form
   91,786.45/137,729.85 = 35,628.79/x
3. Step 3: Cross multiply
   91,786.45x = 137,729.85 × 35,628.79
4. Step 4: Simplify right side
   91,786.45x = 4,907,147,902.38
5. Step 5: Solve for x
   x = 4,907,147,902.38/91,786.45
6. Step 6: Final answer
   x = 53,462.66