Finding the Fourth Proportional to 5,408.10, 8,124.30 and 5,262.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,408.10 : 8,124.30 = 5,262.30 : x
2. Step 2: Convert to fraction form
   5,408.10/8,124.30 = 5,262.30/x
3. Step 3: Cross multiply
   5,408.10x = 8,124.30 × 5,262.30
4. Step 4: Simplify right side
   5,408.10x = 42,752,503.89
5. Step 5: Solve for x
   x = 42,752,503.89/5,408.10
6. Step 6: Final answer
   x = 7,905.27