Finding the Fourth Proportional to 65,953.50, 91,015.83 and 36,145.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,953.50 : 91,015.83 = 36,145.50 : x
2. Step 2: Convert to fraction form
   65,953.50/91,015.83 = 36,145.50/x
3. Step 3: Cross multiply
   65,953.50x = 91,015.83 × 36,145.50
4. Step 4: Simplify right side
   65,953.50x = 3,289,812,683.27
5. Step 5: Solve for x
   x = 3,289,812,683.27/65,953.50
6. Step 6: Final answer
   x = 49,880.79