Finding the Fourth Proportional to 22,518.50, 31,077.41 and 12,448.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,518.50 : 31,077.41 = 12,448.91 : x
2. Step 2: Convert to fraction form
   22,518.50/31,077.41 = 12,448.91/x
3. Step 3: Cross multiply
   22,518.50x = 31,077.41 × 12,448.91
4. Step 4: Simplify right side
   22,518.50x = 386,879,895.57
5. Step 5: Solve for x
   x = 386,879,895.57/22,518.50
6. Step 6: Final answer
   x = 17,180.54