Finding the Fourth Proportional to 12,343.30, 17,028.34 and 7,236.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,343.30 : 17,028.34 = 7,236.22 : x
2. Step 2: Convert to fraction form
   12,343.30/17,028.34 = 7,236.22/x
3. Step 3: Cross multiply
   12,343.30x = 17,028.34 × 7,236.22
4. Step 4: Simplify right side
   12,343.30x = 123,220,814.47
5. Step 5: Solve for x
   x = 123,220,814.47/12,343.30
6. Step 6: Final answer
   x = 9,982.81