Finding the Fourth Proportional to 12,677.31, 17,500.86 and 7,963.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,677.31 : 17,500.86 = 7,963.92 : x
2. Step 2: Convert to fraction form
   12,677.31/17,500.86 = 7,963.92/x
3. Step 3: Cross multiply
   12,677.31x = 17,500.86 × 7,963.92
4. Step 4: Simplify right side
   12,677.31x = 139,375,448.97
5. Step 5: Solve for x
   x = 139,375,448.97/12,677.31
6. Step 6: Final answer
   x = 10,994.09