Finding the Fourth Proportional to 7,131.57, 10,695.98 and 2,748.45

Step by Step Solution

1. Step 1: Write the proportion equation
   7,131.57 : 10,695.98 = 2,748.45 : x
2. Step 2: Convert to fraction form
   7,131.57/10,695.98 = 2,748.45/x
3. Step 3: Cross multiply
   7,131.57x = 10,695.98 × 2,748.45
4. Step 4: Simplify right side
   7,131.57x = 29,397,413.21
5. Step 5: Solve for x
   x = 29,397,413.21/7,131.57
6. Step 6: Final answer
   x = 4,122.15