Finding the Fourth Proportional to 33,213.72, 49,831.52 and 13,486.98

Step by Step Solution

1. Step 1: Write the proportion equation
   33,213.72 : 49,831.52 = 13,486.98 : x
2. Step 2: Convert to fraction form
   33,213.72/49,831.52 = 13,486.98/x
3. Step 3: Cross multiply
   33,213.72x = 49,831.52 × 13,486.98
4. Step 4: Simplify right side
   33,213.72x = 672,076,713.61
5. Step 5: Solve for x
   x = 672,076,713.61/33,213.72
6. Step 6: Final answer
   x = 20,234.91