Finding the Fourth Proportional to 16,861.39, 23,268.72 and 9,307.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,861.39 : 23,268.72 = 9,307.73 : x
2. Step 2: Convert to fraction form
   16,861.39/23,268.72 = 9,307.73/x
3. Step 3: Cross multiply
   16,861.39x = 23,268.72 × 9,307.73
4. Step 4: Simplify right side
   16,861.39x = 216,578,846.86
5. Step 5: Solve for x
   x = 216,578,846.86/16,861.39
6. Step 6: Final answer
   x = 12,844.66