Finding the Fourth Proportional to 9,322.56, 12,851.87 and 7,440.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,322.56 : 12,851.87 = 7,440.12 : x
2. Step 2: Convert to fraction form
   9,322.56/12,851.87 = 7,440.12/x
3. Step 3: Cross multiply
   9,322.56x = 12,851.87 × 7,440.12
4. Step 4: Simplify right side
   9,322.56x = 95,619,417.82
5. Step 5: Solve for x
   x = 95,619,417.82/9,322.56
6. Step 6: Final answer
   x = 10,256.78