Finding the Fourth Proportional to 12,411.50, 17,127.88 and 6,822.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,411.50 : 17,127.88 = 6,822.50 : x
2. Step 2: Convert to fraction form
   12,411.50/17,127.88 = 6,822.50/x
3. Step 3: Cross multiply
   12,411.50x = 17,127.88 × 6,822.50
4. Step 4: Simplify right side
   12,411.50x = 116,854,961.30
5. Step 5: Solve for x
   x = 116,854,961.30/12,411.50
6. Step 6: Final answer
   x = 9,415.06