Finding the Fourth Proportional to 16,713.57, 23,064.72 and 9,261.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,713.57 : 23,064.72 = 9,261.57 : x
2. Step 2: Convert to fraction form
   16,713.57/23,064.72 = 9,261.57/x
3. Step 3: Cross multiply
   16,713.57x = 23,064.72 × 9,261.57
4. Step 4: Simplify right side
   16,713.57x = 213,615,518.81
5. Step 5: Solve for x
   x = 213,615,518.81/16,713.57
6. Step 6: Final answer
   x = 12,780.96