Finding the Fourth Proportional to 22,380.54, 33,540.56 and 8,521.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,380.54 : 33,540.56 = 8,521.98 : x
2. Step 2: Convert to fraction form
   22,380.54/33,540.56 = 8,521.98/x
3. Step 3: Cross multiply
   22,380.54x = 33,540.56 × 8,521.98
4. Step 4: Simplify right side
   22,380.54x = 285,831,981.51
5. Step 5: Solve for x
   x = 285,831,981.51/22,380.54
6. Step 6: Final answer
   x = 12,771.45