Finding the Fourth Proportional to 33,090.86, 49,660.90 and 13,369.59

Step by Step Solution

1. Step 1: Write the proportion equation
   33,090.86 : 49,660.90 = 13,369.59 : x
2. Step 2: Convert to fraction form
   33,090.86/49,660.90 = 13,369.59/x
3. Step 3: Cross multiply
   33,090.86x = 49,660.90 × 13,369.59
4. Step 4: Simplify right side
   33,090.86x = 663,945,838.61
5. Step 5: Solve for x
   x = 663,945,838.61/33,090.86
6. Step 6: Final answer
   x = 20,064.33