Finding the Fourth Proportional to 22,520.86, 31,077.43 and 12,448.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,520.86 : 31,077.43 = 12,448.69 : x
2. Step 2: Convert to fraction form
   22,520.86/31,077.43 = 12,448.69/x
3. Step 3: Cross multiply
   22,520.86x = 31,077.43 × 12,448.69
4. Step 4: Simplify right side
   22,520.86x = 386,873,338.64
5. Step 5: Solve for x
   x = 386,873,338.64/22,520.86
6. Step 6: Final answer
   x = 17,178.45