Finding the Fourth Proportional to 22,429.27, 30,945.54 and 12,996.01

Step by Step Solution

1. Step 1: Write the proportion equation
   22,429.27 : 30,945.54 = 12,996.01 : x
2. Step 2: Convert to fraction form
   22,429.27/30,945.54 = 12,996.01/x
3. Step 3: Cross multiply
   22,429.27x = 30,945.54 × 12,996.01
4. Step 4: Simplify right side
   22,429.27x = 402,168,547.30
5. Step 5: Solve for x
   x = 402,168,547.30/22,429.27
6. Step 6: Final answer
   x = 17,930.52