Finding the Fourth Proportional to 16,689.42, 23,030.55 and 9,134.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,689.42 : 23,030.55 = 9,134.37 : x
2. Step 2: Convert to fraction form
   16,689.42/23,030.55 = 9,134.37/x
3. Step 3: Cross multiply
   16,689.42x = 23,030.55 × 9,134.37
4. Step 4: Simplify right side
   16,689.42x = 210,369,565.00
5. Step 5: Solve for x
   x = 210,369,565.00/16,689.42
6. Step 6: Final answer
   x = 12,604.97