Finding the Fourth Proportional to 33,768.42, 50,648.79 and 9,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,768.42 : 50,648.79 = 9,142.50 : x
2. Step 2: Convert to fraction form
   33,768.42/50,648.79 = 9,142.50/x
3. Step 3: Cross multiply
   33,768.42x = 50,648.79 × 9,142.50
4. Step 4: Simplify right side
   33,768.42x = 463,056,562.58
5. Step 5: Solve for x
   x = 463,056,562.58/33,768.42
6. Step 6: Final answer
   x = 13,712.71