Finding the Fourth Proportional to 103,408.10, 155,139.15 and 33,289.10

Step by Step Solution

1. Step 1: Write the proportion equation
   103,408.10 : 155,139.15 = 33,289.10 : x
2. Step 2: Convert to fraction form
   103,408.10/155,139.15 = 33,289.10/x
3. Step 3: Cross multiply
   103,408.10x = 155,139.15 × 33,289.10
4. Step 4: Simplify right side
   103,408.10x = 5,164,442,678.27
5. Step 5: Solve for x
   x = 5,164,442,678.27/103,408.10
6. Step 6: Final answer
   x = 49,942.34