Finding the Fourth Proportional to 22,919.59, 31,629.90 and 12,848.08

Step by Step Solution

1. Step 1: Write the proportion equation
   22,919.59 : 31,629.90 = 12,848.08 : x
2. Step 2: Convert to fraction form
   22,919.59/31,629.90 = 12,848.08/x
3. Step 3: Cross multiply
   22,919.59x = 31,629.90 × 12,848.08
4. Step 4: Simplify right side
   22,919.59x = 406,383,485.59
5. Step 5: Solve for x
   x = 406,383,485.59/22,919.59
6. Step 6: Final answer
   x = 17,730.84