Finding the Fourth Proportional to 22,521.54, 31,079.55 and 12,450.71

Step by Step Solution

1. Step 1: Write the proportion equation
   22,521.54 : 31,079.55 = 12,450.71 : x
2. Step 2: Convert to fraction form
   22,521.54/31,079.55 = 12,450.71/x
3. Step 3: Cross multiply
   22,521.54x = 31,079.55 × 12,450.71
4. Step 4: Simplify right side
   22,521.54x = 386,962,518.33
5. Step 5: Solve for x
   x = 386,962,518.33/22,521.54
6. Step 6: Final answer
   x = 17,181.88