Finding the Fourth Proportional to 5,073.54, 7,002.57 and 2,978.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,073.54 : 7,002.57 = 2,978.10 : x
2. Step 2: Convert to fraction form
   5,073.54/7,002.57 = 2,978.10/x
3. Step 3: Cross multiply
   5,073.54x = 7,002.57 × 2,978.10
4. Step 4: Simplify right side
   5,073.54x = 20,854,353.72
5. Step 5: Solve for x
   x = 20,854,353.72/5,073.54
6. Step 6: Final answer
   x = 4,110.41