Finding the Fourth Proportional to 13,361.94, 18,440.82 and 7,696.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,361.94 : 18,440.82 = 7,696.86 : x
2. Step 2: Convert to fraction form
   13,361.94/18,440.82 = 7,696.86/x
3. Step 3: Cross multiply
   13,361.94x = 18,440.82 × 7,696.86
4. Step 4: Simplify right side
   13,361.94x = 141,936,409.83
5. Step 5: Solve for x
   x = 141,936,409.83/13,361.94
6. Step 6: Final answer
   x = 10,622.44