Finding the Fourth Proportional to 12,989.34, 17,923.53 and 7,323.66

Step by Step Solution

1. Step 1: Write the proportion equation
   12,989.34 : 17,923.53 = 7,323.66 : x
2. Step 2: Convert to fraction form
   12,989.34/17,923.53 = 7,323.66/x
3. Step 3: Cross multiply
   12,989.34x = 17,923.53 × 7,323.66
4. Step 4: Simplify right side
   12,989.34x = 131,265,839.72
5. Step 5: Solve for x
   x = 131,265,839.72/12,989.34
6. Step 6: Final answer
   x = 10,105.66