Finding the Fourth Proportional to 16,690.73, 23,031.86 and 9,422.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,690.73 : 23,031.86 = 9,422.37 : x
2. Step 2: Convert to fraction form
   16,690.73/23,031.86 = 9,422.37/x
3. Step 3: Cross multiply
   16,690.73x = 23,031.86 × 9,422.37
4. Step 4: Simplify right side
   16,690.73x = 217,014,659.60
5. Step 5: Solve for x
   x = 217,014,659.60/16,690.73
6. Step 6: Final answer
   x = 13,002.11