Finding the Fourth Proportional to 21,343.50, 32,018.29 and 7,304.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,343.50 : 32,018.29 = 7,304.78 : x
2. Step 2: Convert to fraction form
   21,343.50/32,018.29 = 7,304.78/x
3. Step 3: Cross multiply
   21,343.50x = 32,018.29 × 7,304.78
4. Step 4: Simplify right side
   21,343.50x = 233,886,626.21
5. Step 5: Solve for x
   x = 233,886,626.21/21,343.50
6. Step 6: Final answer
   x = 10,958.21