Finding the Fourth Proportional to 9,448.77, 13,020.06 and 7,311.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,448.77 : 13,020.06 = 7,311.31 : x
2. Step 2: Convert to fraction form
   9,448.77/13,020.06 = 7,311.31/x
3. Step 3: Cross multiply
   9,448.77x = 13,020.06 × 7,311.31
4. Step 4: Simplify right side
   9,448.77x = 95,193,694.88
5. Step 5: Solve for x
   x = 95,193,694.88/9,448.77
6. Step 6: Final answer
   x = 10,074.72