Finding the Fourth Proportional to 33,111.86, 49,690.10 and 12,335.36

Step by Step Solution

1. Step 1: Write the proportion equation
   33,111.86 : 49,690.10 = 12,335.36 : x
2. Step 2: Convert to fraction form
   33,111.86/49,690.10 = 12,335.36/x
3. Step 3: Cross multiply
   33,111.86x = 49,690.10 × 12,335.36
4. Step 4: Simplify right side
   33,111.86x = 612,945,054.32
5. Step 5: Solve for x
   x = 612,945,054.32/33,111.86
6. Step 6: Final answer
   x = 18,511.35