Finding the Fourth Proportional to 12,189.98, 16,822.17 and 7,411.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,189.98 : 16,822.17 = 7,411.48 : x
2. Step 2: Convert to fraction form
   12,189.98/16,822.17 = 7,411.48/x
3. Step 3: Cross multiply
   12,189.98x = 16,822.17 × 7,411.48
4. Step 4: Simplify right side
   12,189.98x = 124,677,134.46
5. Step 5: Solve for x
   x = 124,677,134.46/12,189.98
6. Step 6: Final answer
   x = 10,227.84