Finding the Fourth Proportional to 9,028.31, 12,433.23 and 8,465.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,028.31 : 12,433.23 = 8,465.76 : x
2. Step 2: Convert to fraction form
   9,028.31/12,433.23 = 8,465.76/x
3. Step 3: Cross multiply
   9,028.31x = 12,433.23 × 8,465.76
4. Step 4: Simplify right side
   9,028.31x = 105,256,741.20
5. Step 5: Solve for x
   x = 105,256,741.20/9,028.31
6. Step 6: Final answer
   x = 11,658.52