Finding the Fourth Proportional to 33,438.89, 49,863.62 and 33,139.10

Step by Step Solution

1. Step 1: Write the proportion equation
   33,438.89 : 49,863.62 = 33,139.10 : x
2. Step 2: Convert to fraction form
   33,438.89/49,863.62 = 33,139.10/x
3. Step 3: Cross multiply
   33,438.89x = 49,863.62 × 33,139.10
4. Step 4: Simplify right side
   33,438.89x = 1,652,435,697.05
5. Step 5: Solve for x
   x = 1,652,435,697.05/33,438.89
6. Step 6: Final answer
   x = 49,416.58