Finding the Fourth Proportional to 103,390.10, 155,112.15 and 33,271.10

Step by Step Solution

1. Step 1: Write the proportion equation
   103,390.10 : 155,112.15 = 33,271.10 : x
2. Step 2: Convert to fraction form
   103,390.10/155,112.15 = 33,271.10/x
3. Step 3: Cross multiply
   103,390.10x = 155,112.15 × 33,271.10
4. Step 4: Simplify right side
   103,390.10x = 5,160,751,853.87
5. Step 5: Solve for x
   x = 5,160,751,853.87/103,390.10
6. Step 6: Final answer
   x = 49,915.34