Finding the Fourth Proportional to 22,361.58, 33,498.47 and 12,981.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,361.58 : 33,498.47 = 12,981.94 : x
2. Step 2: Convert to fraction form
   22,361.58/33,498.47 = 12,981.94/x
3. Step 3: Cross multiply
   22,361.58x = 33,498.47 × 12,981.94
4. Step 4: Simplify right side
   22,361.58x = 434,875,076.34
5. Step 5: Solve for x
   x = 434,875,076.34/22,361.58
6. Step 6: Final answer
   x = 19,447.42