Finding the Fourth Proportional to 21,799.84, 30,071.76 and 14,736.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,799.84 : 30,071.76 = 14,736.16 : x
2. Step 2: Convert to fraction form
   21,799.84/30,071.76 = 14,736.16/x
3. Step 3: Cross multiply
   21,799.84x = 30,071.76 × 14,736.16
4. Step 4: Simplify right side
   21,799.84x = 443,142,266.84
5. Step 5: Solve for x
   x = 443,142,266.84/21,799.84
6. Step 6: Final answer
   x = 20,327.78