Finding the Fourth Proportional to 12,469.30, 18,687.79 and 5,065.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,469.30 : 18,687.79 = 5,065.16 : x
2. Step 2: Convert to fraction form
   12,469.30/18,687.79 = 5,065.16/x
3. Step 3: Cross multiply
   12,469.30x = 18,687.79 × 5,065.16
4. Step 4: Simplify right side
   12,469.30x = 94,656,540.29
5. Step 5: Solve for x
   x = 94,656,540.29/12,469.30
6. Step 6: Final answer
   x = 7,591.17