Finding the Fourth Proportional to 21,796.36, 30,079.56 and 12,366.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,796.36 : 30,079.56 = 12,366.34 : x
2. Step 2: Convert to fraction form
   21,796.36/30,079.56 = 12,366.34/x
3. Step 3: Cross multiply
   21,796.36x = 30,079.56 × 12,366.34
4. Step 4: Simplify right side
   21,796.36x = 371,974,066.01
5. Step 5: Solve for x
   x = 371,974,066.01/21,796.36
6. Step 6: Final answer
   x = 17,065.88