Finding the Fourth Proportional to 9,665.67, 13,238.67 and 9,098.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.67 : 13,238.67 = 9,098.26 : x
2. Step 2: Convert to fraction form
   9,665.67/13,238.67 = 9,098.26/x
3. Step 3: Cross multiply
   9,665.67x = 13,238.67 × 9,098.26
4. Step 4: Simplify right side
   9,665.67x = 120,448,861.71
5. Step 5: Solve for x
   x = 120,448,861.71/9,665.67
6. Step 6: Final answer
   x = 12,461.51