Finding the Fourth Proportional to 33,311.70, 49,969.98 and 10,513.53

Step by Step Solution

1. Step 1: Write the proportion equation
   33,311.70 : 49,969.98 = 10,513.53 : x
2. Step 2: Convert to fraction form
   33,311.70/49,969.98 = 10,513.53/x
3. Step 3: Cross multiply
   33,311.70x = 49,969.98 × 10,513.53
4. Step 4: Simplify right side
   33,311.70x = 525,360,883.83
5. Step 5: Solve for x
   x = 525,360,883.83/33,311.70
6. Step 6: Final answer
   x = 15,771.06