Finding the Fourth Proportional to 33,106.86, 49,658.94 and 8,145.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,106.86 : 49,658.94 = 8,145.72 : x
2. Step 2: Convert to fraction form
   33,106.86/49,658.94 = 8,145.72/x
3. Step 3: Cross multiply
   33,106.86x = 49,658.94 × 8,145.72
4. Step 4: Simplify right side
   33,106.86x = 404,507,820.74
5. Step 5: Solve for x
   x = 404,507,820.74/33,106.86
6. Step 6: Final answer
   x = 12,218.25