Finding the Fourth Proportional to 7,443.72, 11,172.90 and 5,064.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.72 : 11,172.90 = 5,064.50 : x
2. Step 2: Convert to fraction form
   7,443.72/11,172.90 = 5,064.50/x
3. Step 3: Cross multiply
   7,443.72x = 11,172.90 × 5,064.50
4. Step 4: Simplify right side
   7,443.72x = 56,585,152.05
5. Step 5: Solve for x
   x = 56,585,152.05/7,443.72
6. Step 6: Final answer
   x = 7,601.73