Finding the Fourth Proportional to 13,092.37, 18,071.33 and 7,989.73

Step by Step Solution

1. Step 1: Write the proportion equation
   13,092.37 : 18,071.33 = 7,989.73 : x
2. Step 2: Convert to fraction form
   13,092.37/18,071.33 = 7,989.73/x
3. Step 3: Cross multiply
   13,092.37x = 18,071.33 × 7,989.73
4. Step 4: Simplify right side
   13,092.37x = 144,385,007.49
5. Step 5: Solve for x
   x = 144,385,007.49/13,092.37
6. Step 6: Final answer
   x = 11,028.18