Finding the Fourth Proportional to 12,111.88, 16,708.00 and 9,122.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.88 : 16,708.00 = 9,122.52 : x
2. Step 2: Convert to fraction form
   12,111.88/16,708.00 = 9,122.52/x
3. Step 3: Cross multiply
   12,111.88x = 16,708.00 × 9,122.52
4. Step 4: Simplify right side
   12,111.88x = 152,419,095.46
5. Step 5: Solve for x
   x = 152,419,095.46/12,111.88
6. Step 6: Final answer
   x = 12,584.26