Finding the Fourth Proportional to 13,215.94, 18,233.30 and 7,546.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,215.94 : 18,233.30 = 7,546.62 : x
2. Step 2: Convert to fraction form
   13,215.94/18,233.30 = 7,546.62/x
3. Step 3: Cross multiply
   13,215.94x = 18,233.30 × 7,546.62
4. Step 4: Simplify right side
   13,215.94x = 137,599,786.45
5. Step 5: Solve for x
   x = 137,599,786.45/13,215.94
6. Step 6: Final answer
   x = 10,411.65