Finding the Fourth Proportional to 16,990.43, 23,446.15 and 9,437.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,990.43 : 23,446.15 = 9,437.25 : x
2. Step 2: Convert to fraction form
   16,990.43/23,446.15 = 9,437.25/x
3. Step 3: Cross multiply
   16,990.43x = 23,446.15 × 9,437.25
4. Step 4: Simplify right side
   16,990.43x = 221,267,111.53
5. Step 5: Solve for x
   x = 221,267,111.53/16,990.43
6. Step 6: Final answer
   x = 13,023.04