Finding the Fourth Proportional to 12,009.39, 18,003.84 and 4,608.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,009.39 : 18,003.84 = 4,608.69 : x
2. Step 2: Convert to fraction form
   12,009.39/18,003.84 = 4,608.69/x
3. Step 3: Cross multiply
   12,009.39x = 18,003.84 × 4,608.69
4. Step 4: Simplify right side
   12,009.39x = 82,974,117.37
5. Step 5: Solve for x
   x = 82,974,117.37/12,009.39
6. Step 6: Final answer
   x = 6,909.10