Finding the Fourth Proportional to 21,796.38, 30,071.27 and 14,247.07

Step by Step Solution

1. Step 1: Write the proportion equation
   21,796.38 : 30,071.27 = 14,247.07 : x
2. Step 2: Convert to fraction form
   21,796.38/30,071.27 = 14,247.07/x
3. Step 3: Cross multiply
   21,796.38x = 30,071.27 × 14,247.07
4. Step 4: Simplify right side
   21,796.38x = 428,427,342.27
5. Step 5: Solve for x
   x = 428,427,342.27/21,796.38
6. Step 6: Final answer
   x = 19,655.89