Finding the Fourth Proportional to 14,665.03, 21,981.02 and 7,274.79

Step by Step Solution

1. Step 1: Write the proportion equation
   14,665.03 : 21,981.02 = 7,274.79 : x
2. Step 2: Convert to fraction form
   14,665.03/21,981.02 = 7,274.79/x
3. Step 3: Cross multiply
   14,665.03x = 21,981.02 × 7,274.79
4. Step 4: Simplify right side
   14,665.03x = 159,907,304.49
5. Step 5: Solve for x
   x = 159,907,304.49/14,665.03
6. Step 6: Final answer
   x = 10,903.99