Finding the Fourth Proportional to 13,052.15, 18,012.23 and 7,386.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,052.15 : 18,012.23 = 7,386.89 : x
2. Step 2: Convert to fraction form
   13,052.15/18,012.23 = 7,386.89/x
3. Step 3: Cross multiply
   13,052.15x = 18,012.23 × 7,386.89
4. Step 4: Simplify right side
   13,052.15x = 133,054,363.69
5. Step 5: Solve for x
   x = 133,054,363.69/13,052.15
6. Step 6: Final answer
   x = 10,194.06