Finding the Fourth Proportional to 13,443.06, 18,552.63 and 7,474.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443.06 : 18,552.63 = 7,474.62 : x
2. Step 2: Convert to fraction form
   13,443.06/18,552.63 = 7,474.62/x
3. Step 3: Cross multiply
   13,443.06x = 18,552.63 × 7,474.62
4. Step 4: Simplify right side
   13,443.06x = 138,673,859.25
5. Step 5: Solve for x
   x = 138,673,859.25/13,443.06
6. Step 6: Final answer
   x = 10,315.65