Finding the Fourth Proportional to 12,389.06, 17,096.73 and 7,674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,389.06 : 17,096.73 = 7,674.50 : x
2. Step 2: Convert to fraction form
   12,389.06/17,096.73 = 7,674.50/x
3. Step 3: Cross multiply
   12,389.06x = 17,096.73 × 7,674.50
4. Step 4: Simplify right side
   12,389.06x = 131,208,854.39
5. Step 5: Solve for x
   x = 131,208,854.39/12,389.06
6. Step 6: Final answer
   x = 10,590.70