Finding the Fourth Proportional to 13,078.80, 18,018.24 and 9,093

Step by Step Solution

1. Step 1: Write the proportion equation
   13,078.80 : 18,018.24 = 9,093 : x
2. Step 2: Convert to fraction form
   13,078.80/18,018.24 = 9,093/x
3. Step 3: Cross multiply
   13,078.80x = 18,018.24 × 9,093
4. Step 4: Simplify right side
   13,078.80x = 163,839,856.32
5. Step 5: Solve for x
   x = 163,839,856.32/13,078.80
6. Step 6: Final answer
   x = 12,527.13