Finding the Fourth Proportional to 5,255.55, 7,876.52 and 2,131.92

Step by Step Solution

1. Step 1: Write the proportion equation
   5,255.55 : 7,876.52 = 2,131.92 : x
2. Step 2: Convert to fraction form
   5,255.55/7,876.52 = 2,131.92/x
3. Step 3: Cross multiply
   5,255.55x = 7,876.52 × 2,131.92
4. Step 4: Simplify right side
   5,255.55x = 16,792,099.86
5. Step 5: Solve for x
   x = 16,792,099.86/5,255.55
6. Step 6: Final answer
   x = 3,195.12