Finding the Fourth Proportional to 9,043.72, 12,480.69 and 5,064.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,043.72 : 12,480.69 = 5,064.80 : x
2. Step 2: Convert to fraction form
   9,043.72/12,480.69 = 5,064.80/x
3. Step 3: Cross multiply
   9,043.72x = 12,480.69 × 5,064.80
4. Step 4: Simplify right side
   9,043.72x = 63,212,198.71
5. Step 5: Solve for x
   x = 63,212,198.71/9,043.72
6. Step 6: Final answer
   x = 6,989.62