Finding the Fourth Proportional to 9,605.16, 13,254.72 and 7,086.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,605.16 : 13,254.72 = 7,086.37 : x
2. Step 2: Convert to fraction form
   9,605.16/13,254.72 = 7,086.37/x
3. Step 3: Cross multiply
   9,605.16x = 13,254.72 × 7,086.37
4. Step 4: Simplify right side
   9,605.16x = 93,927,790.46
5. Step 5: Solve for x
   x = 93,927,790.46/9,605.16
6. Step 6: Final answer
   x = 9,778.88