Finding the Fourth Proportional to 12,343.37, 17,033.42 and 7,039.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,343.37 : 17,033.42 = 7,039.89 : x
2. Step 2: Convert to fraction form
   12,343.37/17,033.42 = 7,039.89/x
3. Step 3: Cross multiply
   12,343.37x = 17,033.42 × 7,039.89
4. Step 4: Simplify right side
   12,343.37x = 119,913,420.72
5. Step 5: Solve for x
   x = 119,913,420.72/12,343.37
6. Step 6: Final answer
   x = 9,714.81