Finding the Fourth Proportional to 13,272.77, 18,315.23 and 7,304.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,272.77 : 18,315.23 = 7,304.69 : x
2. Step 2: Convert to fraction form
   13,272.77/18,315.23 = 7,304.69/x
3. Step 3: Cross multiply
   13,272.77x = 18,315.23 × 7,304.69
4. Step 4: Simplify right side
   13,272.77x = 133,786,949.33
5. Step 5: Solve for x
   x = 133,786,949.33/13,272.77
6. Step 6: Final answer
   x = 10,079.81