Finding the Fourth Proportional to 33,111.19, 49,697.99 and 12,071.57

Step by Step Solution

1. Step 1: Write the proportion equation
   33,111.19 : 49,697.99 = 12,071.57 : x
2. Step 2: Convert to fraction form
   33,111.19/49,697.99 = 12,071.57/x
3. Step 3: Cross multiply
   33,111.19x = 49,697.99 × 12,071.57
4. Step 4: Simplify right side
   33,111.19x = 599,932,765.14
5. Step 5: Solve for x
   x = 599,932,765.14/33,111.19
6. Step 6: Final answer
   x = 18,118.73