Finding the Fourth Proportional to 22,919.05, 31,630.53 and 12,847.51

Step by Step Solution

1. Step 1: Write the proportion equation
   22,919.05 : 31,630.53 = 12,847.51 : x
2. Step 2: Convert to fraction form
   22,919.05/31,630.53 = 12,847.51/x
3. Step 3: Cross multiply
   22,919.05x = 31,630.53 × 12,847.51
4. Step 4: Simplify right side
   22,919.05x = 406,373,550.48
5. Step 5: Solve for x
   x = 406,373,550.48/22,919.05
6. Step 6: Final answer
   x = 17,730.82