Finding the Fourth Proportional to 22,216.73, 30,659.00 and 12,145.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,216.73 : 30,659.00 = 12,145.16 : x
2. Step 2: Convert to fraction form
   22,216.73/30,659.00 = 12,145.16/x
3. Step 3: Cross multiply
   22,216.73x = 30,659.00 × 12,145.16
4. Step 4: Simplify right side
   22,216.73x = 372,358,246.42
5. Step 5: Solve for x
   x = 372,358,246.42/22,216.73
6. Step 6: Final answer
   x = 16,760.27