Finding the Fourth Proportional to 33,536.32, 50,311.92 and 12,760

Step by Step Solution

1. Step 1: Write the proportion equation
   33,536.32 : 50,311.92 = 12,760 : x
2. Step 2: Convert to fraction form
   33,536.32/50,311.92 = 12,760/x
3. Step 3: Cross multiply
   33,536.32x = 50,311.92 × 12,760
4. Step 4: Simplify right side
   33,536.32x = 641,980,099.20
5. Step 5: Solve for x
   x = 641,980,099.20/33,536.32
6. Step 6: Final answer
   x = 19,142.83