Finding the Fourth Proportional to 16,817.02, 23,206.40 and 9,645.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,817.02 : 23,206.40 = 9,645.38 : x
2. Step 2: Convert to fraction form
   16,817.02/23,206.40 = 9,645.38/x
3. Step 3: Cross multiply
   16,817.02x = 23,206.40 × 9,645.38
4. Step 4: Simplify right side
   16,817.02x = 223,834,505.37
5. Step 5: Solve for x
   x = 223,834,505.37/16,817.02
6. Step 6: Final answer
   x = 13,310.00