Finding the Fourth Proportional to 16,815.01, 23,204.24 and 9,646.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,815.01 : 23,204.24 = 9,646.12 : x
2. Step 2: Convert to fraction form
   16,815.01/23,204.24 = 9,646.12/x
3. Step 3: Cross multiply
   16,815.01x = 23,204.24 × 9,646.12
4. Step 4: Simplify right side
   16,815.01x = 223,830,900.50
5. Step 5: Solve for x
   x = 223,830,900.50/16,815.01
6. Step 6: Final answer
   x = 13,311.38