Finding the Fourth Proportional to 14,647.72, 20,213.74 and 7,933.18

Step by Step Solution

1. Step 1: Write the proportion equation
   14,647.72 : 20,213.74 = 7,933.18 : x
2. Step 2: Convert to fraction form
   14,647.72/20,213.74 = 7,933.18/x
3. Step 3: Cross multiply
   14,647.72x = 20,213.74 × 7,933.18
4. Step 4: Simplify right side
   14,647.72x = 160,359,237.89
5. Step 5: Solve for x
   x = 160,359,237.89/14,647.72
6. Step 6: Final answer
   x = 10,947.73