Finding the Fourth Proportional to 57,013.88, 85,103.33 and 50,280.51

Step by Step Solution

1. Step 1: Write the proportion equation
   57,013.88 : 85,103.33 = 50,280.51 : x
2. Step 2: Convert to fraction form
   57,013.88/85,103.33 = 50,280.51/x
3. Step 3: Cross multiply
   57,013.88x = 85,103.33 × 50,280.51
4. Step 4: Simplify right side
   57,013.88x = 4,279,038,902.83
5. Step 5: Solve for x
   x = 4,279,038,902.83/57,013.88
6. Step 6: Final answer
   x = 75,052.59