Finding the Fourth Proportional to 9,311.97, 12,835.72 and 7,319.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,311.97 : 12,835.72 = 7,319.10 : x
2. Step 2: Convert to fraction form
   9,311.97/12,835.72 = 7,319.10/x
3. Step 3: Cross multiply
   9,311.97x = 12,835.72 × 7,319.10
4. Step 4: Simplify right side
   9,311.97x = 93,945,918.25
5. Step 5: Solve for x
   x = 93,945,918.25/9,311.97
6. Step 6: Final answer
   x = 10,088.73