Finding the Fourth Proportional to 22,425.27, 30,940.02 and 12,992.01

Step by Step Solution

1. Step 1: Write the proportion equation
   22,425.27 : 30,940.02 = 12,992.01 : x
2. Step 2: Convert to fraction form
   22,425.27/30,940.02 = 12,992.01/x
3. Step 3: Cross multiply
   22,425.27x = 30,940.02 × 12,992.01
4. Step 4: Simplify right side
   22,425.27x = 401,973,049.24
5. Step 5: Solve for x
   x = 401,973,049.24/22,425.27
6. Step 6: Final answer
   x = 17,925.00