Finding the Fourth Proportional to 5,800.78, 8,004.98 and 3,148.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,800.78 : 8,004.98 = 3,148.16 : x
2. Step 2: Convert to fraction form
   5,800.78/8,004.98 = 3,148.16/x
3. Step 3: Cross multiply
   5,800.78x = 8,004.98 × 3,148.16
4. Step 4: Simplify right side
   5,800.78x = 25,200,985.72
5. Step 5: Solve for x
   x = 25,200,985.72/5,800.78
6. Step 6: Final answer
   x = 4,344.42