Finding the Fourth Proportional to 9,723.15, 13,390.11 and 9,256.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,723.15 : 13,390.11 = 9,256.59 : x
2. Step 2: Convert to fraction form
   9,723.15/13,390.11 = 9,256.59/x
3. Step 3: Cross multiply
   9,723.15x = 13,390.11 × 9,256.59
4. Step 4: Simplify right side
   9,723.15x = 123,946,758.32
5. Step 5: Solve for x
   x = 123,946,758.32/9,723.15
6. Step 6: Final answer
   x = 12,747.59