Finding the Fourth Proportional to 9,426.09, 14,186.40 and 7,098.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,426.09 : 14,186.40 = 7,098.15 : x
2. Step 2: Convert to fraction form
   9,426.09/14,186.40 = 7,098.15/x
3. Step 3: Cross multiply
   9,426.09x = 14,186.40 × 7,098.15
4. Step 4: Simplify right side
   9,426.09x = 100,697,195.16
5. Step 5: Solve for x
   x = 100,697,195.16/9,426.09
6. Step 6: Final answer
   x = 10,682.82