Finding the Fourth Proportional to 16,967.18, 25,429.83 and 12,303.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,967.18 : 25,429.83 = 12,303.20 : x
2. Step 2: Convert to fraction form
   16,967.18/25,429.83 = 12,303.20/x
3. Step 3: Cross multiply
   16,967.18x = 25,429.83 × 12,303.20
4. Step 4: Simplify right side
   16,967.18x = 312,868,157.31
5. Step 5: Solve for x
   x = 312,868,157.31/16,967.18
6. Step 6: Final answer
   x = 18,439.61