Finding the Fourth Proportional to 8,131.56, 12,192.98 and 2,583.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.56 : 12,192.98 = 2,583.40 : x
2. Step 2: Convert to fraction form
   8,131.56/12,192.98 = 2,583.40/x
3. Step 3: Cross multiply
   8,131.56x = 12,192.98 × 2,583.40
4. Step 4: Simplify right side
   8,131.56x = 31,499,344.53
5. Step 5: Solve for x
   x = 31,499,344.53/8,131.56
6. Step 6: Final answer
   x = 3,873.71