Finding the Fourth Proportional to 12,231.25, 16,881.59 and 7,983.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,231.25 : 16,881.59 = 7,983.01 : x
2. Step 2: Convert to fraction form
   12,231.25/16,881.59 = 7,983.01/x
3. Step 3: Cross multiply
   12,231.25x = 16,881.59 × 7,983.01
4. Step 4: Simplify right side
   12,231.25x = 134,765,825.43
5. Step 5: Solve for x
   x = 134,765,825.43/12,231.25
6. Step 6: Final answer
   x = 11,018.15