Finding the Fourth Proportional to 16,713.72, 23,064.92 and 9,261.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,713.72 : 23,064.92 = 9,261.72 : x
2. Step 2: Convert to fraction form
   16,713.72/23,064.92 = 9,261.72/x
3. Step 3: Cross multiply
   16,713.72x = 23,064.92 × 9,261.72
4. Step 4: Simplify right side
   16,713.72x = 213,620,830.86
5. Step 5: Solve for x
   x = 213,620,830.86/16,713.72
6. Step 6: Final answer
   x = 12,781.17