Finding the Fourth Proportional to 16,990.34, 23,446.98 and 9,437.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,990.34 : 23,446.98 = 9,437.37 : x
2. Step 2: Convert to fraction form
   16,990.34/23,446.98 = 9,437.37/x
3. Step 3: Cross multiply
   16,990.34x = 23,446.98 × 9,437.37
4. Step 4: Simplify right side
   16,990.34x = 221,277,825.64
5. Step 5: Solve for x
   x = 221,277,825.64/16,990.34
6. Step 6: Final answer
   x = 13,023.75