Finding the Fourth Proportional to 20,756.76, 31,131.79 and 5,962.31

Step by Step Solution

1. Step 1: Write the proportion equation
   20,756.76 : 31,131.79 = 5,962.31 : x
2. Step 2: Convert to fraction form
   20,756.76/31,131.79 = 5,962.31/x
3. Step 3: Cross multiply
   20,756.76x = 31,131.79 × 5,962.31
4. Step 4: Simplify right side
   20,756.76x = 185,617,362.55
5. Step 5: Solve for x
   x = 185,617,362.55/20,756.76
6. Step 6: Final answer
   x = 8,942.50