Finding the Fourth Proportional to 9,148.55, 12,625.43 and 5,371.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,148.55 : 12,625.43 = 5,371.88 : x
2. Step 2: Convert to fraction form
   9,148.55/12,625.43 = 5,371.88/x
3. Step 3: Cross multiply
   9,148.55x = 12,625.43 × 5,371.88
4. Step 4: Simplify right side
   9,148.55x = 67,822,204.92
5. Step 5: Solve for x
   x = 67,822,204.92/9,148.55
6. Step 6: Final answer
   x = 7,413.44