Finding the Fourth Proportional to 16,982.71, 23,436.03 and 9,429.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,982.71 : 23,436.03 = 9,429.10 : x
2. Step 2: Convert to fraction form
   16,982.71/23,436.03 = 9,429.10/x
3. Step 3: Cross multiply
   16,982.71x = 23,436.03 × 9,429.10
4. Step 4: Simplify right side
   16,982.71x = 220,980,670.47
5. Step 5: Solve for x
   x = 220,980,670.47/16,982.71
6. Step 6: Final answer
   x = 13,012.10